NETGEAR Nighthawk AC1900 WiFi Cable Modem Router Model C7000 User Manual

NETGEAR, Nighthawk, AC1900, WiFi, Cable, Modem, Router, Model, C7000, User, Manual

NETGEAR

Nighthawk AC1900 WiFi Cable Modem Router

350 East Plumeria Drive San Jose, CA 95134 USA April 2017 202-11761-01 Nighthawk AC1900 . WiFi Cable Modem Router. Model C7000v2 User Manual

NETGEAR Nighthawk AC1900 WiFi Cable Modem Router ...

For more information about the topics covered in this manual, visit the support website at http://support.netgear.com. Page 8. Hardware Setup. 8. Nighthawk ...

PDF preview unavailable. Download the PDF instead.

C7000v2 UM EN
Nighthawk AC1900 WiFi Cable Modem Router
Model C7000v2 User Manual
April 2017 202-11761-01
350 East Plumeria Drive San Jose, CA 95134 USA

Nighthawk AC1900 WiFi Cable Modem Router
Support
Thank you for purchasing this NETGEAR product. You can visit www.netgear.com/support to register your product, get help, access the latest downloads and user manuals, and join our community. We recommend that you use only official NETGEAR support resources.
Conformity
For the current EU Declaration of Conformity, visit http://kb.netgear.com/app/answers/detail/a_id/11621.
Compliance
For regulatory compliance information, visit http://www.netgear.com/about/regulatory. See the regulatory compliance document before connecting the power supply.
Trademarks
© NETGEAR, Inc., NETGEAR and the NETGEAR Logo are trademarks of NETGEAR, Inc. Any non-NETGEAR trademarks are used for reference purposes only.
2

Contents
Chapter 1 Hardware Setup
Unpack Your Modem Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Front Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 LED Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Rear Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 Position Your Modem Router. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 Install and Activate Your Modem Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Connect Your Modem Router to a Computer. . . . . . . . . . . . . . . . . . . . . . . . . . 12 Activate Your Internet Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Activate Your Internet Service With Comcast XFINITY. . . . . . . . . . . . . . . . . . 15 Perform a Speed Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 Connect Your Modem Router to a Router After Installation and Activation . . 16
Chapter 2 Connect to the Network and Access the Modem Router
Connect to the Network. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 Wired Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 WiFi Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 Label . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Types of Logins . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 Log In to the Modem Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 Access the Modem Router With NETGEAR genie App . . . . . . . . . . . . . . . . . . . . . 22
Chapter 3 Specify Your Internet Settings
Specify the Cable Connection Starting Frequency . . . . . . . . . . . . . . . . . . . . . . . 24 View Modem Router Initialization. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 Manually Set Up the Internet Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 Specify an IPv6 Internet Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 Change the MTU Size . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Chapter 4 Control Access to the Internet
Set Up Parental Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 Block Access to Your Network. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 Use Keywords to Block Internet Sites . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 Block Services From the Internet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 Schedule When to Block Internet Sites and Services . . . . . . . . . . . . . . . . . . . . . . 36 Avoid Blocking on a Trusted Computer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37 Set Up Security Event Email Notifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
3

Nighthawk AC1900 WiFi Cable Modem Router
Chapter 5 Share USB Devices Attached to the Modem Router
USB Storage Device Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41 Connect a USB Storage Device to the Modem Router . . . . . . . . . . . . . . . . . . . . 41 Access a USB Drive Connected to the Modem Router From a Windows Computer42 Map a USB Device to a Windows Network Drive . . . . . . . . . . . . . . . . . . . . . . . . . 42 Access a USB Storage Device That Is Connected to the Modem Router From a Mac43 Control Access to the USB Storage Device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43 Use FTP Within the Network . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45 View or Change Network Folders on a USB Storage Device. . . . . . . . . . . . . . . . 46 Add a Network Folder on a USB storage device . . . . . . . . . . . . . . . . . . . . . . . . . . 47 Edit a Network Folder on a USB storage device . . . . . . . . . . . . . . . . . . . . . . . . . . 48 Approve USB Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48 Access the USB storage device Through the Internet . . . . . . . . . . . . . . . . . . . . . 50
Set Up FTP Access Through the Internet. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 Access the USB storage device Through the Internet with FTP. . . . . . . . . . . 51 Safely Remove a USB storage device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Chapter 6 Share a USB Printer
Install the Printer Driver and Cable the Printer. . . . . . . . . . . . . . . . . . . . . . . . . . . 54 Download the ReadySHARE Printer Utility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54 Install the ReadySHARE Printer Utility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55 Use the Shared Printer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56 View or Change the Status of a Printer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57 Use the Scan Feature of a Multifunction USB Printer . . . . . . . . . . . . . . . . . . . . . 58 Change NETGEAR USB Control Center Settings . . . . . . . . . . . . . . . . . . . . . . . . . . 59
Chapter 7 Specify Network Settings
View WAN Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61 Set Up a Default DMZ Server . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62 Change the Modem Router's Device Name. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63 Change the LAN TCP/IP Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63 Specify the IP Addresses That the Modem Router Assigns . . . . . . . . . . . . . . . . 64 Disable the DHCP Server Feature in the Modem Router. . . . . . . . . . . . . . . . . . . 66 Reserve LAN IP Addresses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66 Improve Network Connections With Universal Plug and Play . . . . . . . . . . . . . . 68 Use the WPS Wizard for WiFi Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69 Specify Basic WiFi Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69 Change the WiFi Security Option . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72 Set Up a Guest Network. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72 Control the Wireless Radios . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
Use the WiFi On/Off Button . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74 Enable or Disable the Wireless Radios . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74 Set Up a Wireless Schedule . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75 Specify WPS Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76
4

Nighthawk AC1900 WiFi Cable Modem Router
Chapter 8 Manage Your Network
Change the admin Password . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79 Set Up Password Recovery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79 Recover the admin Password. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80 View Modem Router Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80
Display Internet Port Statistics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81 Check the Internet Connection Status. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82 View Logs of Modem Router Activity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83 View Event Logs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85 Run the Ping Utility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86 Run the Traceroute Utility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87 Monitor Internet Traffic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88 View Devices Currently on the Network . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89 Manage the Modem Router Configuration File. . . . . . . . . . . . . . . . . . . . . . . . . . . 90 Back Up Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90 Restore Configuration Settings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91 Erase the Current Configuration Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92 View Wireless Access Points in Your Area . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92 View or Change the Modem Router Wireless Channel . . . . . . . . . . . . . . . . . . . . 93 Dynamic DNS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94 Specify a DNS Account . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95 Change the Dynamic DNS Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95 Remote Management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96
Chapter 9 Specify Internet Port Settings
Set Up Port Forwarding to a Local Server . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99 Add a Custom Port Forwarding Service. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100 Edit a Port Forwarding Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101 Delete a Port Forwarding Entry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102 Application Example: Make a Local Web Server Public . . . . . . . . . . . . . . . . . 102 How the Modem Router Implements the Port Forwarding Rule . . . . . . . . . 103
Set Up Port Triggering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103 Add a Port Triggering Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104 Application Example: Port Triggering for Internet Relay Chat . . . . . . . . . . . 105
Chapter 10 Troubleshooting
Troubleshoot With the LEDs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108 Power LED Is Off. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108 LEDs Never Turn Off. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108 Internet LED Is Off . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108
Troubleshoot the Cable Internet Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . 108 Cannot Log In to the Modem Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109 Changes Not Saved . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110 Wireless Connectivity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110 Troubleshoot Your Network Using the Ping Utility . . . . . . . . . . . . . . . . . . . . . . . 111
Test the LAN Path to Your Modem Router . . . . . . . . . . . . . . . . . . . . . . . . . . . 111
5

Nighthawk AC1900 WiFi Cable Modem Router Test the Path From Your Computer to a Remote Device. . . . . . . . . . . . . . . . 112
Appendix A Supplemental Information
Factory Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114 Technical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115
6

1. Hardware Setup

1

This chapter covers the following topics:
· Unpack Your Modem Router · Front Panel · LED Descriptions · Rear Panel · Position Your Modem Router · Install and Activate Your Modem Router · Connect Your Modem Router to a Router After Installation and Activation
For more information about the topics covered in this manual, visit the support website at http://support.netgear.com.

7

Nighthawk AC1900 WiFi Cable Modem Router
Unpack Your Modem Router
Your package contains the following items.
Modem router

Power adapter

Ethernet cable

Figure 1. Package contents

Hardware Setup 8

Nighthawk AC1900 WiFi Cable Modem Router
Front Panel
Status LEDs and buttons are located on the front or the modem router.
Power LED Downstream LED Upstream LED Internet LED 2.4 GHz LED 5 GHz LED Ethernet LED
WiFi On/Off button WPS button / LED

Figure 2. Modem router front view

LED Descriptions

You can use the LEDs to verify status and connections. The following table lists and describes each LED and button on the front panel of the modem router.
Table 1. LED and button descriptions

LED Power
Downstream

Description
· Green. Power is supplied to the modem router. · Red. Power is cut off due to a thermal error caused by heat. Move the unit to a well
ventilated area and power cycle the unit. · Off. No power is supplied to the modem router.
· Solid green. One or more downstream channels are locked. · Blinking green. The unit is scanning for a downstream channel. · Off. No downstream channel is locked.

Hardware Setup 9

Nighthawk AC1900 WiFi Cable Modem Router

Table 1. LED and button descriptions (continued)

LED Upstream

Description
· Solid green. One or more upstream channels are locked. · Blinking green. The unit is scanning for an upstream channel. · Off. No upstream channel is locked.

Internet 2.4 GHz radio

· Solid green. The modem router is online. · Blinking green. The modem router is synchronizing with the cable provider's cable
modem termination system (CMTS). · Off. The modem router is offline.
· Green. The 2.4 GHz radio is on. · Blinking green. There is WiFi traffic on the 2.4 GHz band. · Off. The 2.4 GHz radio is off.

5 GHz radio

· Green. The 5 GHz radio is on. · Blinking green. There is WiFi traffic on the 5 GHz band. · Off. The 5 GHz radio is off.

Ethernet

· Green. A device is connected to an Ethernet port and powered on. · Blinking green. The Ethernet port is sending or receiving traffic. · Off. No device is connected to an Ethernet port.

WPS button with This button lets you use WPS to join the WiFi network without typing the WiFi password.

LED

The WPS LED blinks during this process and then lights solid.

WiFi On/Off

Pressing this button for two seconds turns the WiFi radios in the modem router on and off. If

button with LED this LED is lit, the WiFi radios are on. If this LED is off, the WiFi radios are turned off and

you cannot use WiFi to connect to the modem router.

Hardware Setup 10

Nighthawk AC1900 WiFi Cable Modem Router
Rear Panel
The connections and button on the rear panel are shown the following figure.
USB 2.0 port
Ethernet ports
Reset button Coaxial cable connector Power adapter input
Figure 3. Modem router rear panel
Position Your Modem Router
The modem router lets you access your network anywhere within the operating range of your wireless network. However, the operating distance or range of your wireless connection can vary significantly depending on the physical placement of your modem router. For example, the thickness and number of walls the wireless signal passes through can limit the range. Additionally, other wireless access points in and around your home might affect your modem router's signal. Wireless access points are modem routers, repeaters, WiFi range extenders, and any other device that emits a wireless signal for network access. Position your modem router according to the following guidelines: · Place your modem router near the center of the area where your computers and other
devices operate, and within line of sight to your wireless devices. · Make sure that the modem router is within reach of an AC power outlet and near Ethernet
cables for wired computers.
Hardware Setup 11

Nighthawk AC1900 WiFi Cable Modem Router

· Place the modem router in an elevated location, minimizing the number walls and ceilings between the modem router and your other devices.
· Place the modem router away from electrical devices such as these: - Ceiling fans - Home security systems - Microwaves - Computers - Base of a cordless phone - 2.4 GHz cordless phone
· Place the modem router away from large metal surfaces, large glass surfaces, insulated walls, and items such as these: - Solid metal doors - Aluminum studs - Fish tanks - Mirrors - Brick - Concrete
Install and Activate Your Modem Router
The modem router provides a connection between your cable Internet provider's network and your computer, router, or WiFi router.
Connect Your Modem Router to a Computer
During the installation and activation, you must connect the modem router directly to a computer. After installation and activation, you can connect the modem router to a router.
Modem router

Power adapte
Coaxial cable

Ethernet cable

Figure 4. Connect the modem router directly to a computer
Hardware Setup 12

Nighthawk AC1900 WiFi Cable Modem Router
Note: Before you connect your modem router and contact your cable Internet provider, collect your cable account number, account phone number, and login information (your email address or user name and password).
 To connect your modem router directly to a computer: 1. Turn off existing modems and routers. If you are replacing a modem that is currently connected in your home, unplug the modem and plug the new modem router into the same outlet. 2. Connect a coaxial cable. Use the coaxial cable that your cable company provided to connect the cable port on the modem router to a cable wall outlet or a line splitter. Make sure that the cable is tightly connected.
Note: If Charter is your cable Internet service provider (ISP), Charter recommends connecting your modem router directly to a cable wall outlet. If you must use a splitter, use a splitter that is rated at 3.5 dBmv. If Comcast XFINITY is your cable Internet provider, Comcast XFINITY recommends connecting your modem router directly to a cable wall outlet.
3. Connect the power adapter provided in the package to the modem router and plug the power adapter into an electrical outlet. When the startup procedure is complete, the Power LED lights solid green.
4. Wait for the modem router to come online. When the modem router comes online, the Internet LED stops blinking and lights solid green. This process might take up to 10 minutes.
Even though an Internet connection is established, Internet service is available only after you set it up with your cable Internet provider.
Activate Your Internet Service
Before you activate your Internet service, gather the following information: · Your cable Internet provider account information · Modem router model number, which is C7000v2 · Modem router serial number · Modem router MAC address
Hardware Setup 13

Nighthawk AC1900 WiFi Cable Modem Router
Your modem router's serial number and MAC address are on the modem router label. MAC address Serial number

 To activate your Internet service:
1. Visit your cable Internet provider's website and follow the onscreen instructions to activate your Internet service.

Cable Internet Provider Bright House Networks (Spectrum) Cable ONE Cablevision (Optimum) Charter (Spectrum) Comcast XFINITY
Cox Mediacom Time Warner Cable

Contact Information
http://support.brighthouse.com 1-855-222-0102
http://www.cableone.net/ 1-877-692-2253 (877-MYCABLE)
http://www.cablevision.com https://install.optimum.com/JointInstall/ Telephone number depends on your region.
https://install.charter.com 1-855-757-7328
https://www.comcast.com/activate http://www.xfinity.com/internetsetup http://www.xfinity.com/internetsupport 1-855-OK-BEGIN (1-855-652-3446) 1-800-XFINITY (1-800-934-6489) For more information, see Activate Your Internet Service With Comcast XFINITY on page 15.
https://activation.cox.net/selfactivation/start.cox 1-888-556-1193
https://maestro.mediacomcc.com/walledgarden/page/login.jsp 1-844-2SIMPLE (1-844-274-6753)
https://www.timewarnercable.com/en/support/internet/step-by-step/mo dem-activation.html 1-(800)-892-4357

Hardware Setup 14

Nighthawk AC1900 WiFi Cable Modem Router
Note: Your cable Internet provider's contact information might change. You can also find the contact information in your monthly Internet service billing statement.
2. If you are unable to activate your Internet service using the instructions on your cable Internet provider's website, call your cable Internet provider for support.
Activate Your Internet Service With Comcast XFINITY
Activate your Internet service by using Comcast XFINITY's self-activation process. If you are unable to self-activate your modem router, call Comcast XFINITY customer service. After you complete the setup, perform a speed test. Before you start the self-activation process, gather the following information: · XFINITY account number · The phone number associated with your XFINITY account · XFINITY login information (your email address or user name and password) · Modem router model number, which is C7000v2 · Modem router serial number · Modem router MAC address Your modem router's serial number and MAC address are on the modem router label.
MAC address Serial number
 To set up your Internet connection with Comcast XFINITY's self-activation process: 1. Close all web browsers. 2. Launch a web browser. You are redirected to the XFINITY self-activation page. If you are not redirected to the XFINITY self-activation page, visit http://www.comcast.com/activate. 3. Provide your XFINITY credentials and complete the self-activation process. This process might take up to 15 minutes, during which the modem router reboots twice. 4. If you are unable to activate your modem router using the XFINITY self-activation process, call 1-855-OK-BEGIN (1-855-652-3446).
Hardware Setup 15

Nighthawk AC1900 WiFi Cable Modem Router
Perform a Speed Test
To determine the accurate Internet speed, visit the speed test website of your cable Internet provider and perform a speed test. If your actual speed is lower than your subscribed speed, contact your cable Internet provider.
Connect Your Modem Router to a Router After Installation and Activation
During the installation and activation, you must connect the modem router directly to a computer. After installation and activation, you can connect the modem router to a router. If you want to connect your modem router to a router, you must disable NAT. With NAT disabled, to avoid conflicting with the other router on the network, the modem router does not use NAT.
 To disable NAT and connect your modem router to a router after installation and activation: 1. Connect a coaxial cable. Use the coaxial cable that is provided by your cable company to connect the cable port on the modem router to a cable wall outlet. Note: If Charter is your cable Internet service provider (ISP), Charter recommends connecting your modem router directly to a cable wall outlet. If you must use a splitter, use a splitter that is rated at 3.5 dBmv. Make sure that the cable is tightly connected. 2. Connect the power adapter to the modem router and plug the power adapter into an electrical outlet. The startup procedure takes about one minute. When the startup procedure is complete, the Power LED lights green. 3. On your WiFi-enabled computer or mobile device, find and select the WiFi network. The WiFi network name is on the modem router label. 4. Join the WiFi network and enter the WiFi password. The password is on the modem router label. Your WiFi device connects to the WiFi network. 5. Launch a web browser. 6. Type http://routerlogin.net or http://192.168.0.1. A login window opens.
Hardware Setup 16

Nighthawk AC1900 WiFi Cable Modem Router
7. Enter the modem router user name and password. The user name is admin. The default password is password. The user name and password are case-sensitive.
8. When prompted, change the password and enter security questions and answers. The BASIC Home page displays.
9. Select ADVANCED > Administration > Router Mode. The Router Mode page displays.
10. Select the No radio button.
With this setting, the modem router works as a bridge and the router behind it obtains a WAN IP address from the Internet service provider. 11. Click the Apply button. Your settings are saved. Note: When your modem router is in bridge mode, use http://192.168.0.1 to
log in to your modem router. 12. Follow the instructions that came with your router to connect it to the modem router.
Hardware Setup 17

2. Connect to the Network and Access the Modem Router
This chapter contains the following sections: · Connect to the Network · Types of Logins · Log In to the Modem Router · Access the Modem Router With NETGEAR genie App

2

18

Nighthawk AC1900 WiFi Cable Modem Router
Connect to the Network
You can connect to the modem router's network through a wired or WiFi connection. If you set up your computer to use a static IP address, change the settings so that it uses Dynamic Host Configuration Protocol (DHCP).
Wired Connection
You can connect your computer to the modem router using an Ethernet cable and join the modem router's local area network (LAN).  To connect your computer to the modem router with an Ethernet cable: 1. Make sure that the modem router is receiving power (its Power LED is lit). 2. Connect an Ethernet cable to an Ethernet port on your computer. 3. Connect the other end of the Ethernet cable to one of the numbered Ethernet ports.
Your computer connects to the local area network (LAN). A message might display on your computer screen to notify you that an Ethernet cable is connected.
WiFi Connection
You can connect to the modem router's WiFi network with Wi-Fi Protected Setup (WPS) or you can find and select the WiFi network.  To use WPS to connect to the WiFi network: 1. Make sure that the modem router is receiving power (its Power LED is lit). 2. Check the WPS instructions for your computer or wireless device. 3. Press the WPS button on the modem router. 4. Within two minutes, on your computer or WiFi device, press its WPS button or follow its
instructions for WPS connections. Your computer or wireless device connects to the WiFi network.  To find and select the WiFi network: 1. Make sure that the modem router is receiving power (its Power LED is lit). 2. On your computer or wireless device, find and select the WiFi network. The WiFi network name is on the modem router's label. 3. Join the WiFi network and enter the WiFi password. The password is on the modem router's label. Your wireless device connects to the WiFi network.
Connect to the Network and Access the Modem Router 19

Nighthawk AC1900 WiFi Cable Modem Router
Label
The label on the modem router shows the login information, MAC address, and serial number.
Figure 5. Modem Router label
Types of Logins
Separate types of logins serve different purposes. It is important that you understand the difference so that you know which login to use when. Types of logins: · WiFi network key or password. Your modem router is preset with a unique wireless
network name (SSID) and password for wireless access. This information is on the modem router label. Note: Your modem router broadcasts dual-band 2.4 GHz and 5 GHz WiFi
signals. The label shows the SSID for the 2.4 GHz signal. For information about 5 GHz WiFi settings, see Specify Basic WiFi Settings on page 69. · Modem router login.This logs you in to the modem router web interface as admin from an Internet browser.
Log In to the Modem Router
When you connect to the network (either with WiFi or with an Ethernet cable), you can use a web browser to access the modem router to view or change its settings. The first time you access the modem router, the modem router automatically checks to see if it can connect to your Internet service.  To log in to the modem router: 1. Launch a web browser from a computer or mobile device that is connected to the
modem router network. 2. Enter http://routerlogin.net or http://192.168.0.1.
A login window opens.
Connect to the Network and Access the Modem Router 20

Nighthawk AC1900 WiFi Cable Modem Router
3. Enter the modem router user name and password. The user name is admin. The default password is password. The user name and password are case-sensitive. The first time you log in to the modem router, you are prompted to change the admin password and set up security questions. You must enter these settings before you can access the Internet.
4. Enter a new password. 5. Select security questions and enter the answers. 6. Click the Next button.
7. Click the Next button. The modem router connects to the Internet. The BASIC Home page displays the status of the Internet connection.
Connect to the Network and Access the Modem Router 21

Nighthawk AC1900 WiFi Cable Modem Router
Access the Modem Router With NETGEAR genie App
The genie® app is the easy dashboard for managing, monitoring, and repairing your home network. The genie app can help you with the following: · Automatically repair common wireless network problems. · Easily manage modem router features like Parental Controls, guest access, Internet
traffic meter, speed test, and more.  To use the genie app to access the modem router:
1. Visit the NETGEAR genie web page at www.NETGEAR.com/genie. 2. Follow the onscreen instructions to install the app on your smartphone, tablet, or computer. 3. Launch the genie app.
The genie app dashboard page displays,
Connect to the Network and Access the Modem Router 22

3. Specify Your Internet Settings

3

Usually, the quickest way to set up the modem router to use your Internet connection is to allow the modem router to detect the Internet connection when you first access the modem router with an Internet browser. You can also customize or specify your Internet settings.
This chapter contains the following sections:
· Specify the Cable Connection Starting Frequency · View Modem Router Initialization · Manually Set Up the Internet Connection · Specify an IPv6 Internet Connection · Change the MTU Size

23

Nighthawk AC1900 WiFi Cable Modem Router
Specify the Cable Connection Starting Frequency
The starting frequency is automatically generated. For most Internet connections, you do not need to specify this information. If you must enter a starting frequency, contact your Internet provider.  To change the starting frequency: 1. Launch a web browser from a computer or mobile device that is connected to the
modem router network. 2. Enter http://routerlogin.net or http://192.168.0.1.
A login window opens. 3. Enter the modem router user name and password.
The user name is admin. The default password is password. The user name and password are case-sensitive. The BASIC Home page displays. 4. Select Cable Connection.
The page displays the status of all downstream and upstream channels. 5. In the Starting Frequency field, enter a frequency. 6. Click the Apply button.
Your settings are saved.
Specify Your Internet Settings 24

Nighthawk AC1900 WiFi Cable Modem Router
View Modem Router Initialization
You can track the initialization procedure of the modem router and get details about the downstream and upstream cable channel. The time is displayed after the modem router is initialized. The modem router automatically goes through the following steps in the provisioning process: 1. Scans and locks the downstream frequency and then ranges the upstream channels. 2. Obtains a WAN address for the modem router. 3. Connects to the Internet.  To view the status of the modem router initialization: 1. Launch a web browser from a computer or mobile device that is connected to the
modem router network. 2. Enter http://routerlogin.net or http://192.168.0.1.
A login window opens. 3. Enter the modem router user name and password.
The user name is admin. The default password is password. The user name and password are case-sensitive. The BASIC Home page displays. 4. Select Cable Connection.
The Startup Procedure section displays the initialization progress. The page also displays the status of all downstream and upstream channels. (You must scroll down to view all the channels.) The number of downstream and upstream channels that are locked depends on the number of channels that your Internet provider uses.
Specify Your Internet Settings 25

Nighthawk AC1900 WiFi Cable Modem Router
Manually Set Up the Internet Connection
In most situations, you do not need to change these settings. NETGEAR recommends that you use the default settings for DHCP because most cable Internet services provide the IP address through DHCP.  To specify the Internet connection settings: 1. Launch a web browser from a computer or mobile device that is connected to the
modem router network. 2. Enter http://routerlogin.net or http://192.168.0.1.
A login window opens. 3. Enter the modem router user name and password.
The user name is admin. The default password is password. The user name and password are case-sensitive. The BASIC Home page displays. 4. Select ADVANCED > Setup > Internet.
Scroll to view more settings
5. If your Internet connection requires an account name or host name, type it in the Account Name (If Required) field.
6. If your Internet connection requires a domain name, type it in the Domain Name (If Required) field. For the other sections in this page, the default settings usually work, but you can change them.
7. Select an Internet IP Address radio button:
Specify Your Internet Settings 26

Nighthawk AC1900 WiFi Cable Modem Router
· Get Dynamically from ISP. Your ISP uses DHCP to assign your IP address. Your ISP automatically assigns these addresses.
· Use Static IP Address. Enter the IP address, IP subnet mask, and the gateway IP address that your ISP assigned. The gateway is the ISP modem router to which your modem router connects.
8. Select a Domain Name Server (DNS) Address radio button: · Get Automatically from ISP. Your ISP uses DHCP to assign your DNS servers. Your ISP automatically assigns this address. · Use These DNS Servers. If you know that your ISP requires specific servers, select this option. Enter the IP address of your ISP's primary DNS server. If a secondary DNS server address is available, enter it also.
9. For the Router MAC Address setting, select one of the following radio buttons: · Use Default Address. Use the default MAC address. · Use Computer MAC Address. The modem router captures and uses the MAC address of the computer that you are now using. You must use the one computer that the ISP allows. · Use This MAC Address. Enter the MAC address that you want to use.
10. Click the Apply button. Your settings are saved. If the NETGEAR website does not display within one minute, see Chapter 10, Troubleshooting.
Specify an IPv6 Internet Connection
 To specify an IPv6 Internet connection: 1. Launch a web browser from a computer or mobile device that is connected to the modem router network. 2. Enter http://routerlogin.net or http://192.168.0.1. A login window opens. 3. Enter the modem router user name and password. The user name is admin. The default password is password. The user name and password are case-sensitive. The BASIC Home page displays.
Specify Your Internet Settings 27

Nighthawk AC1900 WiFi Cable Modem Router
4. Select ADVANCED > Advanced Setup > IPv6.
If your Internet provider supports IIPV6, the System Delegated Prefix field displays IPv6 information. 5. Specify how the modem router assigns IPv6 addresses to the devices on your home network (the LAN) by selecting one of the following radio buttons: · Use DHCP Server. This method passes more information to LAN devices, but some
IPv6 systems might not support the DHCv6 client function. · Auto Config. This is the default setting. 6. Complete the fields in the Server Settings section. 7. Click the Apply button. Your settings are saved.
Change the MTU Size
The maximum transmission unit (MTU) is the largest data packet a network device transmits. When one network device communicates across the Internet with another, the data packets travel through many devices along the way. If a device in the data path has a lower MTU setting than the other devices, the data packets must be split or "fragmented" to accommodate the device with the smallest MTU. The best MTU setting for NETGEAR equipment is often the default value. In some situations, changing the value fixes one problem but causes another. Leave the MTU unchanged unless one of these situations occurs: · You experience problems connecting to your ISP or other Internet service, and the
technical support of either the ISP or NETGEAR recommends changing the MTU setting. These web-based applications might require an MTU change: - A secure website that does not open, or displays only part of a web page - Yahoo email
Specify Your Internet Settings 28

Nighthawk AC1900 WiFi Cable Modem Router
- MSN portal - America Online's DSL service · You use VPN and experience severe performance problems. · You used a program to optimize MTU for performance reasons, and now you are experiencing connectivity or performance problems.
Note: An incorrect MTU setting can cause Internet communication problems. For example, you might not be able to access certain websites, frames within websites, secure login pages, or FTP or POP servers.
 To change the MTU size: 1. Launch a web browser from a computer or mobile device that is connected to the modem router network. 2. Enter http://routerlogin.net or http://192.168.0.1. A login window opens. 3. Enter the modem router user name and password. The user name is admin. The default password is password. The user name and password are case-sensitive. The BASIC Home page displays. 4. Select ADVANCED > Setup > WAN Setup.
5. In the MTU Size field, enter a value from 64 to 1500. 6. Click the Apply button.
Your change is saved. If you suspect an MTU problem, a common solution is to change the MTU to 1400. If you are willing to experiment, you can gradually reduce the MTU from the maximum value of 1500
Specify Your Internet Settings 29

Nighthawk AC1900 WiFi Cable Modem Router

until the problem goes away. The following table describes common MTU sizes and applications.
Table 2. Common MTU sizes

MTU 1500
1492 1472 1468 1460

Application
The largest Ethernet packet size. This setting is typical for connections that do not use PPPoE or VPN, and is the default value for NETGEAR modem routers, adapters, and switches.
Used in PPPoE environments.
Maximum size to use for pinging. (Larger packets are fragmented.)
Used in some DHCP environments.
Usable by AOL if you do not send or receive large email attachments, for example.

Specify Your Internet Settings 30

4. Control Access to the Internet

4

The modem router comes with a built-in firewall that helps protect your home network from unwanted intrusions from the Internet.
This chapter includes the following sections:
· Set Up Parental Controls · Block Access to Your Network · Use Keywords to Block Internet Sites · Block Services From the Internet · Schedule When to Block Internet Sites and Services · Avoid Blocking on a Trusted Computer · Set Up Security Event Email Notifications

31

Nighthawk AC1900 WiFi Cable Modem Router
Set Up Parental Controls
The first time that you select Parental Controls from the BASIC Home page, your browser goes to the Parental Controls website, where you can learn more about Parental Controls. To set up Parental Controls, you must download the genie app.
 To set up Parental Controls: 1. Launch a web browser from a computer or mobile device that is connected to the modem router network. 2. Enter http://routerlogin.net or http://192.168.0.1. A login window opens. 3. Enter the modem router user name and password. The user name is admin. The default password is password. The user name and password are case-sensitive. The BASIC Home page displays. 4. Select Parental Controls. The Parental Controls website opens. 5. Click the button for the genie app or version that you want to download and use. 6. Follow the onscreen instructions to download and install the genie app. 7. Open the genie app and select Parental Controls. Parental Controls automatically starts. 8. Click the button, read the note, and click the Next button again. Because Parental Controls uses free OpenDNS accounts, you are prompted to log in or create a free account. 9. Select a radio button as follows: · If you already own an OpenDNS account, leave the Yes radio button selected. · If you did not yet create an OpenDNS account, select the No radio button. If you are creating an account, the Create a free OpenDNS account page displays. Do the following: a. Complete the fields. b. Click the Next button. After you log on or create your account, the filtering level page displays. 10. Select a radio button for a filtering level and click the Next button. The Setup is complete page displays. 11. Click the Take me to the status page button.
Control Access to the Internet 32

Nighthawk AC1900 WiFi Cable Modem Router
The Status page displays. Parental Controls are now set up for the modem router. 12. To enable Parental Controls, click the Enable Live Parental Controls button.
Block Access to Your Network
You can use access control to block access to your network.
 To set up access control: 1. Launch a web browser from a computer or mobile device that is connected to the modem router network. 2. Enter http://routerlogin.net or http://192.168.0.1. A login window opens. 3. Enter the modem router user name and password. The user name is admin. The default password is password. The user name and password are case-sensitive. The BASIC Home page displays. 4. Select ADVANCED > Security > Access Control. 5. Select the Turn on Access Control check box. You must select this check box before you can specify an access rule and use the Allow and Block buttons. When this check box is cleared, all devices are allowed to connect, even if a device is in the blocked list. 6. Select ann access rule: · Allow all new devices to connect. With this setting, if you buy a new device, it can access your network. You don't need to enter its MAC address on this page. NETGEAR recommends that you leave this radio button selected. · Block all new devices from connecting. With this setting, if you buy a new device, before it can access your network, you must enter its MAC address for an Ethernet connection and its MAC address for a WiFi connection in the allowed list. The access rule does not affect previously blocked or allowed devices. It applies only to devices joining your network in the future after you apply these settings. 7. To allow the computer or device you're currently using to continue to access the network, select the check box next to your computer or device, and click the Allow button. 8. Click the Apply button. Your changes take effect.
Use Keywords to Block Internet Sites
You can use keywords to block certain Internet sites from your network. You can use blocking all the time or based on a schedule.
Control Access to the Internet 33

Nighthawk AC1900 WiFi Cable Modem Router
 To set block Internet sites: 1. Launch a web browser from a computer or mobile device that is connected to the modem router network. 2. Enter http://routerlogin.net or http://192.168.0.1. A login window opens. 3. Enter the modem router user name and password. The user name is admin. The default password is password. The user name and password are case-sensitive. The BASIC Home page displays. 4. Select ADVANCED > Security > Block Sites.
5. Select one of the keyword blocking option: · Per Schedule. Turn on keyword blocking according to a schedule that you set. (See Schedule When to Block Internet Sites and Services on page 36.) · Always. Turn on keyword blocking all the time, independent of the Schedule page.
6. In the Type keyword or domain here field, enter a keyword or domain that you want to block. For example: · Specify XXX to block http://www.badstuff.com/xxx.html. · Specify .com if you want to allow only sites with domain suffixes such as .edu or .gov. · Enter a period (.) to block all Internet browsing access.
7. Click the Add Keyword button. The keyword is added to the keyword list. The keyword list supports up to 32 entries.
8. Click the Apply button.
Control Access to the Internet 34

Nighthawk AC1900 WiFi Cable Modem Router
Keyword blocking takes effect.  To delete keywords from the list:
1. Do one of the following: · To delete a single word, select it and click the Delete Keyword button. The keyword is removed from the list. · To delete all keywords on the list, click the Clear List button. All keywords are removed from the list.
2. Click the Apply button. Your changes are saved.
Block Services From the Internet
You can block Internet services on your network based on the type of service. You can block the services all the time or based on a schedule.  To block services: 1. Launch a web browser from a computer or mobile device that is connected to the
modem router network. 2. Enter http://routerlogin.net or http://192.168.0.1.
A login window opens. 3. Enter the modem router user name and password.
The user name is admin. The default password is password. The user name and password are case-sensitive. The BASIC Home page displays. 4. Select ADVANCED > Security > Block Services.
5. Specify when to block the services: · To block the services all the time, select the Always radio button. · To block the services based on a schedule, select the Per Schedule radio button.
Control Access to the Internet 35

Nighthawk AC1900 WiFi Cable Modem Router
For information about how to specify the schedule, see Schedule When to Block Internet Sites and Services on page 36. 6. Click the Add button.
7. To add a service that is in the Service Type list, select the application or service. The settings for this service automatically display in the fields.
8. To add a service or application that is not the list, select User Defined. a. If you know that the application uses either TCP or UDP, select the appropriate protocol; otherwise, select TCP/UDP (both). b. Enter the starting port and ending port numbers. If the service uses a single port number, enter that number in both fields. To find out which port numbers the service or application uses, you can contact the publisher of the application, ask user groups or newsgroups, or search on the Internet.
9. To specify how to filter the services, select one of the following radio buttons: · Only This IP Address. Block services for a single computer. · IP Address Range. Block services for a range of computers with consecutive IP addresses on your network. · All lP Addresses. Block services for all computers on your network.
10. Click the Add button. Your changes are saved.
Schedule When to Block Internet Sites and Services
When you schedule blocking, the same schedule is used to block sites and to block services. For information about how to specify what you want the modem router to block, see Use Keywords to Block Internet Sites on page 33 and Block Services From the Internet on page 35.
Control Access to the Internet 36

Nighthawk AC1900 WiFi Cable Modem Router
 To schedule blocking: 1. Launch a web browser from a computer or mobile device that is connected to the modem router network. 2. Enter http://routerlogin.net or http://192.168.0.1. A login window opens. 3. Enter the modem router user name and password. The user name is admin. The default password is password. The user name and password are case-sensitive. The BASIC Home page displays. 4. Select ADVANCED > Security > Schedule. 5. Specify when to block keywords and services: · Days to Block. Select the check box for each day that you want to block the keywords or select the Every Day check box, which automatically selects the check boxes for all days. · Time of Day to Block. Select a start and end time in 24-hour format, or select All Day for 24-hour blocking. 6. Select your time zone from the list. 7. If you use daylight saving time, select the Automatically adjust for daylight savings time check box. 8. Click the Apply button. Your settings are saved.
Avoid Blocking on a Trusted Computer
You can exempt one trusted computer from blocking. The computer you exempt must be assigned a fixed IP address. You can use the reserved IP address feature to specify the IP address. See Reserve LAN IP Addresses on page 66.
 To specify a trusted computer: 1. Launch a web browser from a computer or mobile device that is connected to the modem router network. 2. Enter http://routerlogin.net or http://192.168.0.1. A login window opens. 3. Enter the modem router user name and password. The user name is admin. The default password is password. The user name and password are case-sensitive. The BASIC Home page displays. 4. Select ADVANCED > Security > Block Sites.
Control Access to the Internet 37

Nighthawk AC1900 WiFi Cable Modem Router
5. Scroll down and select the Allow trusted IP address to visit blocked sites check box. 6. In the Trusted IP Address field, enter the IP address of the trusted computer. 7. Click the Apply button.
Your changes are saved.
Set Up Security Event Email Notifications
The modem router can email you its logs of modem router activity. The log records activity and security events such as attempts to access blocked sites or services.  To set up email notifications: 1. Launch a web browser from a computer or mobile device that is connected to the
modem router network. 2. Enter http://routerlogin.net or http://192.168.0.1.
A login window opens. 3. Enter the modem router user name and password.
The user name is admin. The default password is password. The user name and password are case-sensitive. The BASIC Home page displays. 4. Select ADVANCED > Security > E-mail.
5. Select the Turn Email Notification On check box. 6. In the Your Outgoing Mail Server field, enter the name of your ISP outgoing (SMTP) mail
server (such as mail.myISP.com). You might be able to find this information in the configuration window of your email program. If you leave this field blank, log and alert messages are not sent.
Control Access to the Internet 38

Nighthawk AC1900 WiFi Cable Modem Router
7. In the Send to This E-mail Address field, type the email address to which logs and alerts are to be sent. This email address is also used for the From address. If this field is blank, log and alert messages are not sent.
8. If your outgoing email server requires authentication, select the My Mail Server requires authentication check box. a. In the User Name field, type the user name for the outgoing email server. b. In the Password field, type the password for the outgoing email server.
9. (Optional) Select the Send Alerts Immediately check box. Email alerts are sent immediately when someone attempts to visit a blocked site.
10. To send logs based on a schedule, specify these settings: · From Send logs according to this schedule drop-down list, select the schedule type. · From the Day drop-down list, select the day. · From the Time drop-down list, select the time, and select the am or pm radio button.
11. Click the Apply button. Your settings are saved. Logs are sent automatically. If the log fills up before the specified time, it is sent. After the log is sent, it is cleared from the modem router memory. If the modem router cannot email the log and the log buffer fills up, the modem router overwrites the log.
Control Access to the Internet 39

5. Share USB Devices Attached to the Modem Router

5

This chapter describes how to access and configure a USB storage drive attached to your modem router. The USB port on the modem router can be used only to connect USB storage devices like flash drives or hard drives, or a printer. Do not connect computers, USB modems, CD drives, or DVD drives to the modem router USB port.
This chapter contains the following sections:
· USB Storage Device Requirements · Connect a USB Storage Device to the Modem Router · Access a USB Drive Connected to the Modem Router From a Windows Computer · Map a USB Device to a Windows Network Drive · Access a USB Storage Device That Is Connected to the Modem Router From a Mac · Control Access to the USB Storage Device · Use FTP Within the Network · View or Change Network Folders on a USB Storage Device · Add a Network Folder on a USB storage device · Edit a Network Folder on a USB storage device · Approve USB Devices · Access the USB storage device Through the Internet · Safely Remove a USB storage device
For more information about ReadySHARE features, visit www.netgear.com/readyshare.

40

Nighthawk AC1900 WiFi Cable Modem Router
USB Storage Device Requirements
The modem router works with most USB-compliant external flash and hard drives. For the most up-to-date list of USB storage devices that the modem router supports, visit kb.netgear.com/app/answers/detail/a_id/18985/~/readyshare-usb-drives-compatibility-list. Some USB external hard drives and flash drives require you to load the drivers onto the computer before the computer can access the USB device. Such USB devices do not work with the modem router. The modem router supports the following file system types for full read/write access: · FAT16, FAT32 · NTFS · NTFS with compression format enabled · Ext2, Ext3, Ext4 · XFS · HFS+
Connect a USB Storage Device to the Modem Router
ReadySHARE lets you access and share a USB storage device connected to the modem router USB port. (If your USB storage device has special drivers, it is not compatible.)  To connect a USB storage device: 1. Insert your USB storage device into the USB port on the modem router.
USB port
Share USB Devices Attached to the Modem Router 41

Nighthawk AC1900 WiFi Cable Modem Router
2. If your USB storage device has a power supply, connect it. You must use the power supply when you connect the USB storage device to the modem router. When you connect the USB storage device to the modem router USB port, it might take up to two minutes before it is ready for sharing. By default, the USB storage device is available to all computers on your local area network (LAN).
Access a USB Drive Connected to the Modem Router From a Windows Computer
 To access a USB storage device from a Windows computer: 1. Connect a USB storage device to a USB port on your router. 2. If your USB storage device uses a power supply, connect it. You must use the power supply when you connect the USB storage device to the modem router. When you connect the USB storage device to the modem router's port, it might take up to two minutes before it is ready for sharing. By default, the USB storage device is available to all computers on your local area network (LAN). 3. Select Start > Run. 4. Enter \\readyshare in the dialog box. 5. Click the OK button. A window automatically opens and displays the files and folders on the USB storage device.
Map a USB Device to a Windows Network Drive
 To map a USB device to a Windows network drive: 1. Connect a USB storage device to a USB port on the router. 2. If your USB storage device has a power supply, connect it. You must use the power supply when you connect the USB storage device to the modem router. When you connect the USB storage device to the router's port, it might take up to two minutes before it is ready for sharing. By default, the device is available to all computers on your local area network (LAN). 3. Select Start > Run. 4. Enter \\readyshare in the dialog box. 5. Click the OK button.
Share USB Devices Attached to the Modem Router 42

Nighthawk AC1900 WiFi Cable Modem Router
6. Right-click the USB device and select Map network drive. 7. Select the drive letter to map to the new network folder. 8. Click the Finish button.
The USB storage device is mapped to the drive letter that you specified. 9. To connect to the USB storage device as a different user, select the Connect using
different credentials check box, click the Finish button, and do the following: a. Type the user name and password. b. Click the OK button.
Access a USB Storage Device That Is Connected to the Modem Router From a Mac
 To access the device from a Mac: 1. Connect a USB storage device to a USB port on your router. 2. If your USB storage device has a power supply, connect it. You must use the power supply when you connect the USB storage device to the modem router. When you connect the USB storage device to the router's port, it might take up to two minutes before it is ready for sharing. By default, the USB storage device is available to all computers on your local area network (LAN). 3. On a Mac that is connected to the network, select Go > Connect to Server. 4. In the Server Address field, enter smb://readyshare. 5. When prompted, select the Guest radio button. If you set up access control on the router and you allowed your Mac to access the network, select the Registered User radio button and enter admin for the name and enter your admin password or the password. For more information about access control, see View Devices Currently on the Network on page 89. 6. Click the Connect button. A window automatically opens and displays the files and folders on the USB storage device.
Control Access to the USB Storage Device
You can specify the device name, workgroups, and network folders for your USB device.
 To specify the USB access settings: 1. Launch a web browser from a computer or mobile device that is connected to the modem router network.
Share USB Devices Attached to the Modem Router 43

Nighthawk AC1900 WiFi Cable Modem Router
2. Enter http://routerlogin.net or http://192.168.0.1. A login window opens.
3. Enter the modem router user name and password. The user name is admin. The default password is password. The user name and password are case-sensitive. The BASIC Home page displays.
4. Select ADVANCED > USB Storage > Advanced Settings.
5. Specify access to the USB storage device: · Network Device Name. This is the name used to access the USB device connected to the modem router. The default is readyshare. · Workgroup. If you are using a Windows workgroup rather than a domain, the workgroup name is displayed here. The name works only in an operating system that supports NetBIOS, such as Microsoft Windows. · Access Method. Select the check boxes for the access methods that you want: - Network Neighborhood/MacShare. Enabled by default. - HTTP. Enabled by default. You can type http://readyshare.routerlogin.net/shares to access the USB storage device. - HTTP (via Internet). Disabled by default. If you enable this feature, remote users can type http://<public IP address>/shares (for example, http://1.1.10.102/shares) or a URL domain name to access the USB storage device over the Internet. This feature supports file uploading only. - FTP. Disabled by default.
Share USB Devices Attached to the Modem Router 44

Nighthawk AC1900 WiFi Cable Modem Router
- FTP (via Internet). Disabled by default. If you select this check box, remote users can access the USB storage device through FTP over the Internet. This feature supports both downloading and uploading of files.
6. If you changed the settings, click the Apply button. Your changes are saved.
Use FTP Within the Network
File Transfer Protocol (FTP) lets you send and receive large files faster.  To set up FTP access:
1. Launch a web browser from a computer or mobile device that is connected to the modem router network.
2. Enter http://routerlogin.net or http://192.168.0.1. A login window opens.
3. Enter the modem router user name and password. The user name is admin. The default password is password. The user name and password are case-sensitive. The BASIC Home page displays.
4. Select ADVANCED > USB Storage > Advanced Settings.
5. Select the FTP check box. 6. Click the Apply button.
Your changes are saved.
Share USB Devices Attached to the Modem Router 45

Nighthawk AC1900 WiFi Cable Modem Router
View or Change Network Folders on a USB Storage Device
You can view or change the network folders on the USB storage device  To view or change network folders:
1. Launch a web browser from a computer or mobile device that is connected to the modem router network.
2. Enter http://routerlogin.net or http://192.168.0.1. A login window opens.
3. Enter the modem router user name and password. The user name is admin. The default password is password. The user name and password are case-sensitive. The BASIC Home page displays.
4. Select ADVANCED > USB Storage > Advanced Settings.
5. Scroll down to the Available Networks Folder section, and view or adjust the following settings: · Share Name. If only one device is connected, the default share name is USB_Storage. (Some modem router models include more than one USB port.) You can click the name, or you can type it in the address field of your web browser. If Not Shared is shown, the default share was deleted, and no other share for the root folder exists. Click the link to change this setting. · Read Access and Write Access. Show the permissions and access controls on the network folder. All­no password (the default) allows all users to access the network folder. The password for admin is the same one that you use to log in to the modem router.
Share USB Devices Attached to the Modem Router 46

Nighthawk AC1900 WiFi Cable Modem Router
· Folder Name. Full path of the network folder. · Volume Name. Volume name from the storage device (either USB storage device or
HDD). · Total Space and Free Space. Show the current utilization of the storage device.
Add a Network Folder on a USB storage device
You can add network folders on the USB storage device.  To add a network folder:
1. Launch a web browser from a computer or mobile device that is connected to the modem router network.
2. Enter http://routerlogin.net or http://192.168.0.1. A login window opens.
3. Enter the modem router user name and password. The user name is admin. The default password is password. The user name and password are case-sensitive. The BASIC Home page displays.
4. Select ADVANCED > ReadySHARE. The USB Storage (Advanced Settings) page displays.
5. Click the Create Network Folder button.
If this page does not display, your web browser might be blocking pop-ups. If it is, change the browser settings to allow pop-ups. 6. In the USB Device menu, select the USB storage device. 7. Click the Browse button and in the Folder field, select the folder. 8. In the Share Name field, type the name of the share. 9. In the Read Access menu and the Write Access menu, select the settings that you want.
Share USB Devices Attached to the Modem Router 47

Nighthawk AC1900 WiFi Cable Modem Router
The user name (account name) for All­no password is guest. The password for admin is the same one that is used to log in to the modem router. By default, it is password. 10. Click the Apply button. Your settings are saved.
Edit a Network Folder on a USB storage device
You can edit network folders on the USB storage device.  To edit a network folder:
1. Launch a web browser from a computer or mobile device that is connected to the modem router network.
2. Enter http://routerlogin.net or http://192.168.0.1. A login window opens.
3. Enter the modem router user name and password. The user name is admin. The default password is password. The user name and password are case-sensitive. The BASIC Home page displays.
4. Select ADVANCED > ReadySHARE. 5. Click the Edit button.
The Edit Network Folder page displays the same settings shown in the Add a Network Folder page. 6. Change the settings in the fields as needed. 7. Click the Apply button. Your changes are saved.
Approve USB Devices
For more security, you can set up the modem router to share only USB devices that you approve.  To approve USB devices: 1. Launch a web browser from a computer or mobile device that is connected to the
modem router network. 2. Enter http://routerlogin.net or http://192.168.0.1.
A login window opens. 3. Enter the modem router user name and password.
Share USB Devices Attached to the Modem Router 48

Nighthawk AC1900 WiFi Cable Modem Router
The user name is admin. The default password is password. The user name and password are case-sensitive. The BASIC Home page displays. 4. Select ADVANCED > Advanced Setup > USB Settings.
By default the Enable any USB Device connection to the USB port radio button is selected. This setting lets you connect and access all your USB storage devices. 5. Select the No radio button. 6. Click the Approved Devices button.
The approved and available USB devices display. 7. In the Available USB Devices menu, select the drive that you want to approve. 8. Click the Add button. 9. Select the Allow only approved devices check box. 10. Click the Apply button.
Your change takes effect. 11. To work with another USB device, first click the Safely Remove USB Device button for the
currently connected USB device. Connect the other USB device, and repeat this process.
Share USB Devices Attached to the Modem Router 49

Nighthawk AC1900 WiFi Cable Modem Router
Access the USB storage device Through the Internet
You can access the USB storage device through the Internet when you're not home.  To access the USB storage device from a remote computer:
1. Launch a web browser on a computer that is not on your home network. 2. Connect to your modem router:
· To connect with Dynamic DNS, type the DNS name. To use a Dynamic DNS account, you must enter the account information in the Dynamic DNS page. See Dynamic DNS on page 94.
· To connect without Dynamic DNS, type the modem router's Internet port IP address. You can view the modem router's Internet IP address on the BASIC Home page. You can use FTP to share files on a USB storage device connected to the modem router.
Set Up FTP Access Through the Internet
 To set up FTP access: 1. Launch a web browser from a computer or mobile device that is connected to the modem router network. 2. Enter http://routerlogin.net or http://192.168.0.1. A login window opens. 3. Enter the modem router user name and password. The user name is admin. The default password is password. The user name and password are case-sensitive. The BASIC Home page displays.
Share USB Devices Attached to the Modem Router 50

Nighthawk AC1900 WiFi Cable Modem Router
4. Select ADVANCED > USB Storage > Advanced Settings.
5. Select the FTP (via Internet) check box. 6. Click the Apply button.
Your changes are saved. 7. To limit access to the admin user, click the Edit button.
8. In the Read Access menu, select admin. 9. In the Write Access menu, select admin. 10. Click the Apply button.
Your changes are saved.
Access the USB storage device Through the Internet with FTP
You must first set up FTP access through the Internet. See Set Up FTP Access Through the Internet on page 50.  To access the USB storage device with FTP from a remote computer: 1. To download, launch an Internet browser.
Share USB Devices Attached to the Modem Router 51

Nighthawk AC1900 WiFi Cable Modem Router
2. To upload, use an FTP client such as filezilla. 3. Type ftp:// and the Internet port IP address in the address field of the browser.
For example, type ftp://10.1.65.4. If you are using Dynamic DNS, type the DNS name. For example, type ftp://MyName.mynetgear.com. 4. When prompted, log in: · To log in as admin, in the user name field, type admin and in the password field, type
the same password that you use to log in to the modem router. · To log in as guest, in the user name field, enter guest.
The guest user name does not require a password. To restrict access to the USB storage device, you can specify that only the admin user can access it. See Approve USB Devices on page 48. The files and folders of the USB storage device that your account can access display. For example, you might see share/partition1/directory1.
Safely Remove a USB storage device
Before you physically disconnect a USB storage device from the modem router USB port, log in to the modem router and take the drive offline.  To remove a USB disk drive safely: 1. Launch a web browser from a computer or mobile device that is connected to the
modem router network. 2. Enter http://routerlogin.net or http://192.168.0.1.
A login window opens. 3. Enter the modem router user name and password.
The user name is admin. The default password is password. The user name and password are case-sensitive. The BASIC Home page displays. 4. Select USB Storage > Basic Settings. 5. Click the Safely Remove USB Device button. This takes the drive offline. 6. Physically disconnect the USB storage device.
Share USB Devices Attached to the Modem Router 52

6. Share a USB Printer

6

The ReadySHARE Printer utility lets you share a USB printer that is connected to a USB port on your modem router. You can share this USB printer among the Windows-based and Mac computers on your network.
This chapter contains the following sections:
· Install the Printer Driver and Cable the Printer · Download the ReadySHARE Printer Utility · Install the ReadySHARE Printer Utility · Use the Shared Printer · View or Change the Status of a Printer · Use the Scan Feature of a Multifunction USB Printer · Change NETGEAR USB Control Center Settings

53

Nighthawk AC1900 WiFi Cable Modem Router
Install the Printer Driver and Cable the Printer
Some USB printer manufacturers (for example, HP and Lexmark printers) request that you do not connect the USB cable until the installation software prompts you to do so.  To install the driver and cable the printer: 1. On each computer on your network that shares the USB printer, install the driver
software for the USB printer. If you cannot find the printer driver, contact the printer manufacturer. 2. Use a USB printer cable to connect the USB printer to the modem router USB port.
USB port
Download the ReadySHARE Printer Utility
The utility works on Windows-based and Mac computers.  To download the utility:
1. Visit netgear.com/readyshare. 2. Scroll down to the Print From the Comfort of Your Home Network section at the bottom of
the page. 3. Click one of the following links:
· Download PC installer and get started. This is the utility for Windows-based computers.
· Download Mac installer and get started. This is the utility for MAC computers.
Share a USB Printer 54

Nighthawk AC1900 WiFi Cable Modem Router
4. Follow the onscreen instructions to download the ReadySHARE Printer utility setup file and install it.
Install the ReadySHARE Printer Utility
You must install the ReadySHARE Printer utility on each computer that will share the printer. After you install it, the utility displays as NETGEAR USB Control Center on your computer.  To install the utility: 1. Double-click the ReadySHARE Printer utility setup file that you downloaded.
The InstallShield wizard displays.
2. Follow the wizard instructions to install NETGEAR USB Control Center. After the InstallShield Wizard completes the installation, the NETGEAR USB Control Center prompts you to select a language:
Share a USB Printer 55

Nighthawk AC1900 WiFi Cable Modem Router
3. Select a language from the list and click the OK button.
Some firewall software, such as Comodo, blocks NETGEAR USB Control Center from accessing the USB printer. If you do not see the USB printer displayed, you can disable the firewall temporarily to allow the utility to work. 4. Select the printer and click the Connect button. The printer status changes to Manually connected by Mycomputer. Now, only your computer can use the printer. 5. Click the Disconnect button. The status changes to Available. Now all computers on the network can use the printer. 6. To exit the utility, select System > Exit.
Use the Shared Printer
For each computer, after you click the Connect and Disconnect buttons once, the utility automatically manages the printing queue. By default, the utility starts automatically whenever you log on to Windows and runs in the background.  To manually connect and print: 1. Click the NETGEAR USB Control Center icon .
The main page displays. 2. Click the Connect button.
The printer status changes to Manually connected by Mycomputer. Now, only the computer that you are using can use this printer. 3. Use the print feature in your application to print your document. 4. To release the printer so that all computers on the network can use it, click the Disconnect button.
Share a USB Printer 56

Nighthawk AC1900 WiFi Cable Modem Router
 To print and release the printer to any computer on the network: 1. To print your document, use the print feature in your application. The NETGEAR USB Control Center automatically connects your computer to the USB printer and prints the document. If another computer is already connected to the printer, your print job goes into a queue to wait to be printed. 2. If your document does not print, use the NETGEAR USB Control Center to check the status.
View or Change the Status of a Printer
 To view or change the status: 1. Click the NETGEAR USB Control Center icon .
The Status column shows the status for each device: · Available. No print jobs are in progress. You can use the USB printer from any
computer in the network. · Connected. Your computer is connected to the printer and will be released when
your print job is done. · Manually Connected by. Only the connected computer can use the printer. · Waiting to Connect. Your computer is not connected to the shared printer yet. 2. To print from your computer when the status shows Manually connected by another computer, click the Disconnect button. The printer is released from the connection and the status changes to Available. 3. To print from your computer when the status shows Waiting to Connect: a. Click the Connect button.
The printer status changes to Manually connected by Mycomputer. Now, only your computer can use the printer. b. To allow the printer to be shared, click the Disconnect button. The printer is released from the connection and the status changes to Available.
Share a USB Printer 57

Nighthawk AC1900 WiFi Cable Modem Router
Use the Scan Feature of a Multifunction USB Printer
If your USB printer supports scanning, you can also use the USB printer for scanning. For example, the USB printer displayed in the Windows Printers and Faxes window is ready for print jobs.
Figure 6. Printers and Faxes window  To use the scan feature of a multifunction USB printer:
1. Click the NETGEAR USB Control Center icon . The NETGEAR USB Control Center page displays.
2. Make sure that the printer status shows as Available. 3. Click the Network Scanner button.
The scanner page displays so that you can use the USB printer for scanning.
Share a USB Printer 58

Nighthawk AC1900 WiFi Cable Modem Router
Change NETGEAR USB Control Center Settings
You can stop the NETGEAR USB Control Center from starting automatically when you log in to Windows. You can also change the language and specify the time-out to release the printer connection.  To turn off automatic NETGEAR USB Control Center startup: 1. Select Tools > Configuration.
2. Clear the Automatically execute when logging on Windows check box. 3. Click the OK button.
Your change is saved.  To change the language:
1. Select Tools > Configuration. 2. In the Language list, select a language. 3. Click the OK button.
The next time NETGEAR USB Control Center starts, the language changes.  To specify the time-out:
1. Select Tools > Configuration. 2. In the Timeout field, type the number of minutes.
The time-out is the number of minutes that a computer holds its connection to the printer when the connection isn't being used. 3. Click the OK button. Your change is saved.
Share a USB Printer 59

7. Specify Network Settings
This chapter includes the following sections: · View WAN Settings · Set Up a Default DMZ Server · Change the Modem Router's Device Name · Change the LAN TCP/IP Settings · Specify the IP Addresses That the Modem Router Assigns · Disable the DHCP Server Feature in the Modem Router · Reserve LAN IP Addresses · Improve Network Connections With Universal Plug and Play · Use the WPS Wizard for WiFi Connections · Specify Basic WiFi Settings · Change the WiFi Security Option · Set Up a Guest Network · Control the Wireless Radios · Set Up a Wireless Schedule · Specify WPS Settings

7

60

Nighthawk AC1900 WiFi Cable Modem Router
View WAN Settings
You can view or configure wide area network (WAN) settings for the Internet port. You can set up a DMZ (demilitarized zone) server, change the maximum transmit unit (MTU) size, and enable the modem router to respond to a ping to its WAN (Internet) port.  To view the WAN settings: 1. Launch a web browser from a computer or mobile device that is connected to the
modem router network. 2. Enter http://routerlogin.net or http://192.168.0.1.
A login window opens. 3. Enter the modem router user name and password.
The user name is admin. The default password is password. The user name and password are case-sensitive. The BASIC Home page displays. 4. Select ADVANCED > Setup > WAN Setup.
View or change the following settings: · Disable IPv4 Firewall Protection. NETGEAR recommends that you leave this check
box cleared so that the firewall protects your modem router. · Disable Port Scan and DoS Protection. DoS protection protects your LAN against
denial of service attacks such as Syn flood, Smurf Attack, Ping of Death, and many others. Select this check box only in special circumstances. · Default DMZ Server. This feature is disabled by default. It is sometimes helpful when you are playing online games or videoconferencing, but it makes the firewall security less effective. See Set Up a Default DMZ Server on page 62. · Respond to Ping on Internet Port. This feature allows your modem router to be discovered. Use this feature only as a diagnostic tool or if a specific reason exists. · MTU Size (in bytes). The normal MTU (maximum transmit unit) value for most Ethernet networks is 1500 bytes, or 1492 bytes for PPPoE connections. Change the
Specify Network Settings 61

Nighthawk AC1900 WiFi Cable Modem Router
MTU only if you are sure that it is necessary for your ISP connection. See Change the MTU Size on page 28. · Disable SIP ALG. Some VoIP applications do not work well with the SIP ALG. Selecting this check box to turn off the SIP ALG might help your VoIP devices to create or accept a call through the modem router. 5. Click the Apply button. Your changes are saved.
Set Up a Default DMZ Server
The default DMZ server feature is helpful when you are using some online games and videoconferencing applications that are incompatible with Network Address Translation (NAT). The modem router is programmed to recognize some of these applications and to work correctly with them, but other applications might not function well. In some cases, one local computer can run the application correctly if the IP address for that computer is entered as the default DMZ server.
WARNING: DMZ servers pose a security risk. A computer designated as the default DMZ server loses much of the protection of the firewall and is exposed to exploits from the Internet. If compromised, the DMZ server computer can be used to attack other computers on your network.
The modem router usually detects and discards incoming traffic from the Internet that is not a response to one of your local computers or a service that you configured on the Port Forwarding/Port Triggering page. Instead of discarding this traffic, the modem router canforward the traffic to one computer on your network. This computer is called the default DMZ server.
 To set up a default DMZ server: 1. Launch a web browser from a computer or mobile device that is connected to the modem router network. 2. Enter http://routerlogin.net or http://192.168.0.1. A login window opens. 3. Enter the modem router user name and password. The user name is admin. The default password is password. The user name and password are case-sensitive. The BASIC Home page displays. 4. Select ADVANCED > Setup > WAN Setup.
Specify Network Settings 62

Nighthawk AC1900 WiFi Cable Modem Router
5. Select the Default DMZ Server check box. 6. Type the IP address. 7. Click the Apply button.
Your change takes effect.
Change the Modem Router's Device Name
The modem router's device name is C7000v2. This device name displays in file manager when you browse your network.  To change the modem router's device name: 1. Launch a web browser from a computer or mobile device that is connected to the
modem router network. 2. Enter http://routerlogin.net or http://192.168.0.1.
A login window opens. 3. Enter the modem router user name and password.
The user name is admin. The default password is password. The user name and password are case-sensitive. The BASIC Home page displays. 4. Select ADVANCED > Setup > LAN Setup. 5. In the Device Name field, type a new name. 6. Click the Apply button. Your change is saved.
Change the LAN TCP/IP Settings
The modem router is preconfigured to use private IP addresses on the LAN side and to act as a DHCP server. The modem router's default LAN IP configuration is as follows: · LAN IP address. 192.168.0.1 · Subnet mask. 255.255.255.0 These addresses are part of the designated private address range for use in private networks and are suitable for most applications. If your network requires a different IP addressing scheme, you can change these settings. You might want to change these settings if you need a specific IP subnet that one or more devices on the network use, or if you use competing subnets with the same IP scheme.
Specify Network Settings 63

Nighthawk AC1900 WiFi Cable Modem Router
 To change the LAN TCP/IP settings: 1. Launch a web browser from a computer or mobile device that is connected to the modem router network. 2. Enter http://routerlogin.net or http://192.168.0.1. A login window opens. 3. Enter the modem router user name and password. The user name is admin. The default password is password. The user name and password are case-sensitive. The BASIC Home page displays. 4. Select ADVANCED > Setup > LAN Setup.
5. In the IP Address field, type the IP address. 6. In the IP Subnet Mask, type the subnet mask of the modem router.
The IP address and subnet mask identify which addresses are local to a specific device and which must be reached through a gateway or modem router. 7. Click the Apply button. Your changes are saved. If you changed the LAN IP address of the modem router, you are disconnected when this change takes effect. 8. To reconnect, close your browser, relaunch it, and log in to the modem router.
Specify the IP Addresses That the Modem Router Assigns
By default, the modem router acts as a Dynamic Host Configuration Protocol (DHCP) server. The modem router assigns IP, DNS server, and default gateway addresses to all computers
Specify Network Settings 64

Nighthawk AC1900 WiFi Cable Modem Router
connected to the LAN. The assigned default gateway address is the LAN address of the modem router. These addresses must be part of the same IP address subnet as the modem router's LAN IP address. Using the default addressing scheme, define a range between 192.168.0.2 and 192.168.0.254, although you can save part of the range for devices with fixed addresses.  To specify the pool of IP addresses that the modem router assigns: 1. Launch a web browser from a computer or mobile device that is connected to the
modem router network. 2. Enter http://routerlogin.net or http://192.168.0.1.
A login window opens. 3. Enter the modem router user name and password.
The user name is admin. The default password is password. The user name and password are case-sensitive. The BASIC Home page displays. 4. Select ADVANCED > Setup > LAN Setup.
5. Make sure that the Use Router as DHCP Server check box is selected. 6. Specify the range of IP addresses that the modem router assigns:
a. In the Starting IP Address field, type the lowest number in the range. This IP address must be in the same subnet as the modem router.
b. In the Ending IP Address field, type the number at the end of the range of IP addresses. This IP address must be in the same subnet as the modem router.
7. Click the Apply button. Your settings are saved.
Specify Network Settings 65

Nighthawk AC1900 WiFi Cable Modem Router
The modem router delivers the following parameters to any LAN device that requests DHCP: · An IP address from the range that you have defined · Subnet mask · Gateway IP address (the modem router's LAN IP address) · DNS server IP address (the modem router's LAN IP address)
Disable the DHCP Server Feature in the Modem Router
By default, the modem router acts as a DHCP server. The modem router assigns IP, DNS server, and default gateway addresses to all computers connected to the LAN. The assigned default gateway address is the LAN address of the modem router. You can use another device on your network as the DHCP server, or specify the network settings of all your computers.  To disable the DHCP server feature in the modem router: 1. Launch a web browser from a computer or mobile device that is connected to the
modem router network. 2. Enter http://routerlogin.net or http://192.168.0.1.
A login window opens. 3. Enter the modem router user name and password.
The user name is admin. The default password is password. The user name and password are case-sensitive. The BASIC Home page displays. 4. Select ADVANCED > Setup > LAN Setup. The LAN Setup page displays. 5. Clear the Use Router as DHCP Server check box. 6. Click the Apply button. 7. (Optional) If this service is disabled and no other DHCP server is on your network, set your computer IP addresses manually so that they can access the modem router.
Reserve LAN IP Addresses
When you specify a reserved IP address for a computer on the LAN, that computer always receives the same IP address each time it accesses the modem router's DHCP server. Assign reserved IP addresses to computers or servers that require permanent IP settings.
Specify Network Settings 66

Nighthawk AC1900 WiFi Cable Modem Router
 To reserve an IP address: 1. Launch a web browser from a computer or mobile device that is connected to the modem router network. 2. Enter http://routerlogin.net or http://192.168.0.1. A login window opens. 3. Enter the modem router user name and password. The user name is admin. The default password is password. The user name and password are case-sensitive. The BASIC Home page displays. 4. Select ADVANCED > Setup > LAN Setup. 5. In the Address Reservation section, click the Add button. 6. In the IP Address field, type the IP address to assign to the computer or server. Choose an IP address from the modem router's LAN subnet, such as 192.168.0.x. 7. Type the MAC address of the computer or server. Tip: If the computer is already on your network, you can copy its MAC address from the Attached Devices page and paste it here.
8. Click the Apply button. The reserved address is entered into the table.
The reserved address is not assigned until the next time the computer contacts the modem router's DHCP server. Reboot the computer, or access its IP configuration and force a DHCP release and renew.  To edit a reserved address entry: 1. Select the radio button next to the reserved address. 2. Click the Edit button. 3. Change the settings. 4. Click the Apply button.
Your changes are saved.  To delete a reserved address entry:
1. Select the radio button next to the reserved address. 2. Click the Delete button.
The address is removed.
Specify Network Settings 67

Nighthawk AC1900 WiFi Cable Modem Router
Improve Network Connections With Universal Plug and Play
Universal Plug and Play (UPnP) helps devices, such as Internet appliances and computers, access the network and connect to other devices as needed. UPnP devices can automatically discover the services from other registered UPnP devices on the network. If you use applications such as multiplayer gaming, peer-to-peer connections, or real-time communications such as instant messaging or remote assistance (a feature in Windows XP), enable UPnP.
 To enable Universal Plug and Play: 1. Launch a web browser from a computer or mobile device that is connected to the modem router network. 2. Enter http://routerlogin.net or http://192.168.0.1. A login window opens. 3. Enter the modem router user name and password. The user name is admin. The default password is password. The user name and password are case-sensitive. The BASIC Home page displays. 4. Select ADVANCED > Advanced Setup > UPnP. The UPnP page displays. 5. Select the Turn UPnP On check box. By default, this check box is selected. UPnP for automatic device configuration can be enabled or disabled. If the Turn UPnP On check box is cleared, the modem router does not allow any device to automatically control modem router resources, such as port forwarding. 6. Type the advertisement period in minutes. The advertisement period specifies how often the modem router broadcasts its UPnP information. This value can range from 1 to 1440 minutes. The default period is 30 minutes. Shorter durations ensure that control points receive current device status at the expense of more network traffic. Longer durations can compromise the freshness of the device status, but can significantly reduce network traffic. 7. Type the advertisement time to live in hops. The time to live for the advertisement is measured in hops (steps) for each UPnP packet sent. Hops are the steps a packet takes between routers. The number of hops can range from 1 to 255. The default value for the advertisement time to live is 4 hops, which is fine for most home networks. If you notice that some devices are not being updated or reached correctly, it might be necessary to increase this value. 8. Click the Apply button.
Specify Network Settings 68

Nighthawk AC1900 WiFi Cable Modem Router
The UPnP Portmap Table displays the IP address of each UPnP device that is accessing the modem router and which ports (internal and external) that device opened. The UPnP Portmap Table also displays what type of port is open and whether that port is still active for each IP address. To refresh the information in the UPnP Portmap Table, click the Refresh button.
Use the WPS Wizard for WiFi Connections
The WPS Wizard helps you add a wireless computer or device to your WiFi network without typing the WiFi password.
 To use the WPS Wizard: 1. Launch a web browser from a computer or mobile device that is connected to the modem router network. 2. Enter http://routerlogin.net or http://192.168.0.1. A login window opens. 3. Enter the modem router user name and password. The user name is admin. The default password is password. The user name and password are case-sensitive. The BASIC Home page displays. 4. Select ADVANCED > WPS Wizard. 5. Click the Next button. The WPS page displays. 6. Select the radio button for the setup method that you want to use: · Push button. Click the WPS button on this page. · PIN Number. The page adjusts. Enter the client security PIN, and click the Next button. 7. Within two minutes, go to the client device and use its WPS software to connect to the WiFi network. The WPS process automatically sets up your wireless computer with the network password when it connects. The modem router WPS page displays a confirmation message.
Specify Basic WiFi Settings
The modem router comes with preset security. This means that the WiFi network name (SSID), network key (password), and security option (encryption protocol) are preset in the factory. You can find the preset SSID and password on the modem router label.
Specify Network Settings 69

Nighthawk AC1900 WiFi Cable Modem Router
Note: The preset SSID and password are uniquely generated for every device to protect and maximize your wireless security.
NETGEAR recommends that you do not change your preset security settings. If you change your preset security settings, make a note of the new settings and store it in a safe place where you can easily find it. If you use a wireless computer to change the wireless network name (SSID) or other wireless security settings, you are disconnected when you click the Apply button. To avoid this problem, use a computer with a wired connection to access the modem router.  To specify basic wireless settings: 1. Launch a web browser from a computer or mobile device that is connected to the
modem router network. 2. Enter http://routerlogin.net or http://192.168.0.1.
A login window opens. 3. Enter the modem router user name and password.
The user name is admin. The default password is password. The user name and password are case-sensitive. The BASIC Home page displays. 4. Select Wireless.
Specify Network Settings 70

Nighthawk AC1900 WiFi Cable Modem Router
5. In the Region list, select your region. In some locations, you cannot change this setting. 6. To control the SSID broadcast, select or clear the Enable SSID Broadcast check box.
When this check box is selected, the modem router broadcasts its network name (SSID) so that it displays when you scan for local WiFi networks on your computer or wireless device.
7. To change the network name (SSID), type a new name in the Name (SSID) field. The name can be up to 32 characters long and it is case-sensitive. The default SSID is randomly generated and is on the modem router label. If you change the name, make sure to write down the new name and keep it in a safe place.
8. To change the wireless channel, select a number in the Channel list. In some regions, not all channels are available. Do not change the channel unless you experience interference (shown by lost connections or slow data transfers). If this happens, experiment with different channels to see which is the best.
When you use multiple access points, it is better if adjacent access points use different channels to reduce interference. For the 2.4 GHz band, the recommended channel spacing between adjacent access points is four channels (for example, use channels 1 and 5, or 6 and 10).
For the 5 GHz band, the recommended channel selection between adjacent access points is channels that are in a different bonded channel groups (for example, use channels 40 and 153).
9. To change the mode, select it from the Mode list. For 2.4 GHz, Up to 600 Mbps is the default setting. The other settings are Up to 289 Mbps and Up to 54 Mbps.
At 5 GHz, Up to 1300 Mbps is the default setting, which allows 802.11ac and 802.11a wireless devices to join the network. The other settings are Up to 600 Mbps and Up to 289 Mbps.
10. Click the Apply button. Your settings are saved.
If you connected wirelessly to the network and you changed the SSID, you are disconnected from the network.
11. Make sure that you can connect to the WiFi network with the new settings. If you cannot connect wirelessly, check the following:
· Is your computer or wireless device connected to another wireless network in your area? Some wireless devices automatically connect to the first open network without wireless security that they discover.
· Is your computer or wireless device trying to connect to your network with its old settings (before you changed the settings)? If so, update the wireless network selection in your computer or wireless device to match the current settings for your network.
Specify Network Settings 71

Nighthawk AC1900 WiFi Cable Modem Router
Change the WiFi Security Option
Your modem router comes with preset WPA2 or WPA security. The password that you enter to connect to your network is unique to your modem router and is on the modem router label. NETGEAR recommends that you use the preset security, but you can change them. NETGEAR recommends that you do not disable security.
 To change the WPA settings: 1. Launch a web browser from a computer or mobile device that is connected to the modem router network. 2. Enter http://routerlogin.net or http://192.168.0.1. A login window opens. 3. Enter the modem router user name and password. The user name is admin. The default password is password. The user name and password are case-sensitive. The BASIC Home page displays. 4. Select Wireless. 5. Under Security Options, select a WPA option. The WPA2 options use the newest standard for the strongest security, but some older computers and wireless devices cannot use WPA2. By default, the WPA2-PSK [AES] radio button is selected. The Passphrase field displays. 6. In the Passphrase field, enter the network key (password) that you want to use. It is a text string from 8 to 63 characters. 7. Write down the new password and keep it in a secure place for future reference. 8. Click the Apply button. Your changes are saved.
Set Up a Guest Network
A guest network allows visitors at your home to use the Internet without using your wireless security key. You can add a guest network to each wireless network: 2.4 GHz b/g/n and 5.0 GHz a/n.
 To set up a guest network: 1. Launch a web browser from a computer or mobile device that is connected to the modem router network. 2. Enter http://routerlogin.net or http://192.168.0.1.
Specify Network Settings 72

Nighthawk AC1900 WiFi Cable Modem Router
A login window opens. 3. Enter the modem router user name and password.
The user name is admin. The default password is password. The user name and password are case-sensitive. The BASIC Home page displays. 4. Select Guest Network.
5. Select any of the following wireless settings: · Enable Guest Network. When this check box is selected, the guest network is enabled, and guests can connect to your network using the SSID of this profile. · Enable SSID Broadcast. If this check box is selected, the wireless access point broadcasts its name (SSID) to all wireless stations. Stations with no SSID can adopt the correct SSID for connections to this access point. · Allow guests to see each other and access my local network. If this check box is selected, anyone who connects to this SSID can access your local network, not just the Internet.
6. Give the guest network a name. The guest network name is case-sensitive and can be up to 32 characters. You then manually configure the wireless devices in your network to use the guest network name in addition to the main SSID.
7. Select a radio button for a security option. The WPA2 options use the newest standard for the strongest security, but some older computers and wireless devices cannot use WPA2. By default, the WPA2-PSK [AES] radio button is selected.
Specify Network Settings 73

Nighthawk AC1900 WiFi Cable Modem Router
8. Click the Apply button. Your settings are saved.
Control the Wireless Radios
The modem router has internal wireless radios that broadcast signals in the 2.4 GHz and 5 GHz range. By default, they are on so that you can connect wirelessly to the modem router. When the wireless radios are off, you can still use an Ethernet cable for a LAN connection to the modem router. You can turn the wireless radios on and off with the WiFi On/Off button on the modem router, or you can log in to the modem router and enable or disable the wireless radios. If you are close to the modem router, it might be easier to press its WiFi On/Off button. If you are away from the modem router or you already logged in, it might be easier to enable or disable them. You can also turn the WiFi radios off and on based on a schedule. (See Set Up a Wireless Schedule on page 75).
Use the WiFi On/Off Button
 To turn the wireless radios off and on with the WiFi On/Off button: Press the WiFi On/Off button on the front of the modem router for two seconds. If you turned off the wireless radios, the WiFi On/Off LED and the WPS LED turn off. If you turned on the wireless radios, the WiFi On/Off LED and the WPS LED light.
Enable or Disable the Wireless Radios
If you used the WiFi On/Off button to turn off the wireless radios, you can't log in to the modem router to turn them back on. You must press the WiFi On/Off button again for two seconds to turn the wireless radios back on.  To enable or disable the wireless radios: 1. Launch a web browser from a computer or mobile device that is connected to the
modem router network. 2. Enter http://routerlogin.net or http://192.168.0.1.
A login window opens. 3. Enter the modem router user name and password.
The user name is admin. The default password is password. The user name and password are case-sensitive. The BASIC Home page displays.
Specify Network Settings 74

Nighthawk AC1900 WiFi Cable Modem Router
4. Select ADVANCED > Advanced Setup > Wireless Settings.
5. Select or clear the Enable Wireless Gateway Radio check boxes in the 2.4 GHz and 5 GHz sections of the page. Clearing this check box turns off the WiFi feature of the modem router.
6. Click the Apply button. If you turned off both wireless radios, the WiFi On/Off LED and the WPS LED turn off. If you turned on the wireless radios, the WiFi On/Off LED and the WPS LED light.
Set Up a Wireless Schedule
You can to turn off the wireless signal from your modem router at times when you do not need a wireless connection. For example, you might turn it off for the weekend if you leave town.  To set up the wireless schedule: 1. Launch a web browser from a computer or mobile device that is connected to the
modem router network. 2. Enter http://routerlogin.net or http://192.168.0.1.
A login window opens. 3. Enter the modem router user name and password.
Specify Network Settings 75

Nighthawk AC1900 WiFi Cable Modem Router
The user name is admin. The default password is password. The user name and password are case-sensitive. The BASIC Home page displays. 4. Select ADVANCED > Advanced Setup > Wireless Settings. The Advanced Wireless Settings page displays. 5. Click the Add a new period button.
6. Use the lists, radio buttons, and check boxes to set up a period during which you want to turn off the wireless signal.
7. Click the Apply button. The Advanced Wireless Settings page displays.
8. Select the Turn off wireless signal by schedule check box to activate the schedule. 9. Click the Apply button.
Specify WPS Settings
Wi-Fi Protected Setup (WPS) lets you join the WiFi network without typing the WiFi password.  To specify WPS settings: 1. Launch a web browser from a computer or mobile device that is connected to the
modem router network. 2. Enter http://routerlogin.net or http://192.168.0.1.
A login window opens. 3. Enter the modem router user name and password.
The user name is admin. The default password is password. The user name and password are case-sensitive. The BASIC Home page displays.
Specify Network Settings 76

Nighthawk AC1900 WiFi Cable Modem Router
4. Select ADVANCED > Advanced Setup > Wireless Settings. The Router's PIN field displays the PIN that you use on a registrar (for example, from the Network Explorer on a Vista Windows computer) to configure the modem router's wireless settings through WPS.
5. (Optional) Select or clear the Disable Router's PIN check box. The PIN function might temporarily be disabled when the modem router detects suspicious attempts to break into the modem router's wireless settings by using the modem router's PIN through WPS. You can manually enable the PIN function by selecting the Disable Router's PIN check box.
6. (Optional) Select or clear the Keep Existing Wireless Settings check box. By default, the Keep Existing Wireless Settings check box is selected. NETGEAR recommends that you leave this check box selected. If you clear this check box, the next time a new wireless client uses WPS to connect to the modem router, the modem router wireless settings change to an automatically generated random SSID and security key.
7. Click the Apply button. Your changes are saved.
Specify Network Settings 77

8. Manage Your Network

8

This chapter describes the modem router settings for administering and maintaining your modem router and home network.
This chapter includes the following sections:
· Change the admin Password · View Modem Router Status · View Logs of Modem Router Activity · View Event Logs · Run the Ping Utility · Run the Traceroute Utility · Monitor Internet Traffic · View Devices Currently on the Network · Manage the Modem Router Configuration File · View Wireless Access Points in Your Area · View or Change the Modem Router Wireless Channel · Dynamic DNS · Remote Management

78

Nighthawk AC1900 WiFi Cable Modem Router
Change the admin Password
You can change the default password that is used to log in to the modem router with the user name admin. This password is not the one that you use for WiFi access. The label on your modem router shows your unique wireless network name (SSID) and password for wireless access.
 To set the password for the user name admin: 1. Launch a web browser from a computer or mobile device that is connected to the modem router network. 2. Enter http://routerlogin.net or http://192.168.0.1. A login window opens. 3. Enter the modem router user name and password. The user name is admin. The default password is password. The user name and password are case-sensitive. The BASIC Home page displays. 4. Select ADVANCED > Administration > Set Password. The Set Password page displays. 5. Type the old password, and type the new password twice. 6. Click the Apply button. Your changes take effect.
Set Up Password Recovery
We recommend that you enable password recovery if you change the password for the router user name admin. Then you can recover the password if it is forgotten.This recovery process is supported in Internet Explorer, Firefox, and Chrome browsers but not in the Safari browser.
 To set up password recovery: 1. Launch a web browser from a computer or mobile device that is connected to the modem router network. 2. Enter http://routerlogin.net or http://192.168.0.1. A login window opens. 3. Enter the user name and password. The user name is admin. The default password is password. The user name and password are case-sensitive. The BASIC Home page displays.
Manage Your Network 79

Nighthawk AC1900 WiFi Cable Modem Router
4. Select ADVANCED > Administration > Set Password. The Set Password page displays.
5. Select the Enable Password Recovery check box. 6. Select two security questions and provide answers to them. 7. Click the Apply button.
Your settings are saved.
Recover the admin Password
 To recover your password: 1. Launch a web browser from a computer or mobile device that is connected to the modem router network. 2. Enter http://routerlogin.net or http://192.168.0.1. A login window opens. 3. Click the Cancel button. If password recovery is enabled, you are prompted to enter the serial number of the modem router. 4. Enter the serial number of the router. The serial number is on the modem router label. 5. Click the Continue button. A window opens requesting the answers to your security questions. 6. Enter the saved answers to your security questions. 7. Click the Continue button. A window opens and displays your recovered password. 8. Click the Login again button. A login window opens. 9. With your recovered password, log in to the router.
View Modem Router Status
 To view modem router status and usage information: 1. Launch a web browser from a computer or mobile device that is connected to the modem router network. 2. Enter http://routerlogin.net or http://192.168.0.1. A login window opens.
Manage Your Network 80

Nighthawk AC1900 WiFi Cable Modem Router
3. Enter the modem router user name and password. The user name is admin. The default password is password. The user name and password are case-sensitive. The BASIC Home page displays.
4. Click the ADVANCED tab.
5. For information about the displayed settings, click the Show/Hide Help Center link at the bottom of the page.
Display Internet Port Statistics
 To display Internet port statistics: 1. Launch a web browser from a computer or mobile device that is connected to the modem router network. 2. Enter http://routerlogin.net or http://192.168.0.1. A login window opens. 3. Enter the modem router user name and password. The user name is admin. The default password is password. The user name and password are case-sensitive. The BASIC Home page displays. 4. Click the ADVANCED tab.
Manage Your Network 81

Nighthawk AC1900 WiFi Cable Modem Router
5. In the Internet Port pane, click the Show Statistics button.
The following information displays: · System Up Time. The time elapsed since the modem router was last restarted. · Port. The statistics for the WAN (Internet) and LAN (Ethernet) ports. For each port,
the page displays the following: - Status. The link status of the port. - TxPkts. The number of packets transmitted on this port since reset or manual
clear. - RxPkts. The number of packets received on this port since reset or manual clear. - Collisions. The number of collisions on this port since reset or manual clear. - Tx B/s. The current transmission (outbound) bandwidth used on the WAN and
LAN ports. - Rx B/s. The current reception (inbound) bandwidth used on the WAN and LAN
ports. - Up Time. The time elapsed since this port acquired the link. - Poll Interval. The interval at which the statistics are updated in this page. 6. To change the polling frequency, enter a time in seconds in the Poll Interval field and click the Set Interval button. 7. To stop the polling entirely, click the Stop button.
Check the Internet Connection Status
 To check the Internet connection status: 1. Launch a web browser from a computer or mobile device that is connected to the modem router network. 2. Enter http://routerlogin.net or http://192.168.0.1. A login window opens. 3. Enter the modem router user name and password. The user name is admin. The default password is password. The user name and password are case-sensitive.
Manage Your Network 82

Nighthawk AC1900 WiFi Cable Modem Router
The BASIC Home page displays. 4. Click the ADVANCED tab. 5. In the Internet Port pane, click the Connection Status button.
The following information displays: · IP Address. The IP address that is assigned to the modem router. · Subnet Mask. The subnet mask that is assigned to the modem router. · Default Gateway. The IP address for the default gateway that the modem router
communicates with. · DHCP Server. The IP address for the Dynamic Host Configuration Protocol server
that provides the TCP/IP configuration for all the computers that are connected to the modem router. · DNS Server. The IP address of the Domain Name Service server that provides translation of network names to IP addresses. · Lease Obtained. The date and time when the lease was obtained. · Lease Expires. The date and time that the lease expires. 6. To return the status of all items to 0, click the Release button. 7. To refresh the window, click the Renew button. 8. To exit, click the Close Window button.
View Logs of Modem Router Activity
The log is a detailed record of the websites you accessed or attempted to access and other modem router actions. Up to 256 entries are stored in the log. Log entries display only when keyword blocking is enabled, and no log entries are made for the trusted user.  To view logs: 1. Launch a web browser from a computer or mobile device that is connected to the
modem router network. 2. Enter http://routerlogin.net or http://192.168.0.1.
Manage Your Network 83

Nighthawk AC1900 WiFi Cable Modem Router
A login window opens. 3. Enter the modem router user name and password.
The user name is admin. The default password is password. The user name and password are case-sensitive. The BASIC Home page displays. 4. Select ADVANCED > Administration > Logs.
The Log page shows the following information: · Date and time. The date and time the log entry was recorded. · Source IP. The IP address of the initiating device for this log entry. · Target address. The name or IP address of the website or news group visited or to
which access was attempted. · Action. The action that occurred, such as whether Internet access was blocked or
allowed. 5. To customize the log, scroll down to view the bottom of the page and clear or select the
check boxes. 6. To refresh the log page, click the Refresh button. 7. To clear the log entries, click the Clear Log button. 8. To email the log immediately, click the Send Log button.
Manage Your Network 84

Nighthawk AC1900 WiFi Cable Modem Router
View Event Logs
Event logs capture important modem router events.  To view the event logs:
1. Launch a web browser from a computer or mobile device that is connected to the modem router network.
2. Enter http://routerlogin.net or http://192.168.0.1. A login window opens.
3. Enter the modem router user name and password. The user name is admin. The default password is password. The user name and password are case-sensitive. The BASIC Home page displays.
4. Select ADVANCED > Administration > Event Log.
The Event Log page shows the following information: · Time. The time the event was recorded. · Priority. The severity for this event. · Description. A description of this event. 5. To refresh the page, click the Refresh button. To clear the log entries, click the Clear Log button.
Manage Your Network 85

Nighthawk AC1900 WiFi Cable Modem Router
Run the Ping Utility
Ping is an administration utility that tests whether a computer on the network is reachable and measures the time it takes messages sent from the originating device to reach a destination computer and return.  To run a ping test: 1. Launch a web browser from a computer or mobile device that is connected to the
modem router network. 2. Enter http://routerlogin.net or http://192.168.0.1.
A login window opens. 3. Enter the modem router user name and password.
The user name is admin. The default password is password. The user name and password are case-sensitive. The BASIC Home page displays. 4. Select ADVANCED > Administration > Diagnostics. In the Utility list, Ping is selected by default.
5. Select the Ping Test Parameters IPv4 or IPv6 radio button. 6. Specify the following parameters for the ping utility:
· Target. The IP address of the ping target computer. · Ping Size. The size (in bytes) of the ping packet. · No. of Pings. The number of times to ping the target computer. The maximum
number of pings is 128. · Ping Interval. The time between pings. 7. Click the Start Test button.
Manage Your Network 86

Nighthawk AC1900 WiFi Cable Modem Router
The ping results display. 8. To stop a ping test, click the Abort Test button. 9. To clear the results from the display, click the Clear Results button.
Run the Traceroute Utility
To display the route and measure transit delays of packets across an IP, run the traceroute utility.  To run a traceroute test: 1. Launch a web browser from a computer or mobile device that is connected to the
modem router network. 2. Enter http://routerlogin.net or http://192.168.0.1.
A login window opens. 3. Enter the modem router user name and password.
The user name is admin. The default password is password. The user name and password are case-sensitive. The BASIC Home page displays. 4. Select ADVANCED > Administration > Diagnostics. 5. In the Utility list, select Traceroute.
6. Specify the following parameters for the traceroute utility: · Target. The IP address or host name of the computer you are tracing. · Max Hops. The maximum number of hops to allow when tracing the route. · Data Size. The input the size (in bytes) of the packet. · Base Port. The port number to send the packet to. · Resolve Host. Select On to resolve the host name to the IP address.
Manage Your Network 87

Nighthawk AC1900 WiFi Cable Modem Router
7. Click the Start Test button. The traceroute results display.
8. To clear the results from the display, click the Clear Results button.
Monitor Internet Traffic
Traffic metering allows you to monitor the volume of Internet traffic that passes through the modem router Internet port. You can set limits for traffic volume.  To monitor Internet traffic: 1. Launch a web browser from a computer or mobile device that is connected to the
modem router network. 2. Enter http://routerlogin.net or http://192.168.0.1.
A login window opens. 3. Enter the modem router user name and password.
The user name is admin. The default password is password. The user name and password are case-sensitive. The BASIC Home page displays. 4. Select ADVANCED > Advanced Setup > Traffic Meter.
Scroll to view more settings
5. Select the Enable Traffic Meter check box. 6. (Optional) Control the volume of Internet traffic.
You can use either the traffic volume control feature or the connection time control feature:
Manage Your Network 88

Nighthawk AC1900 WiFi Cable Modem Router
· Select the Traffic volume control by radio button and then select one of the following options: - No Limit. No restriction is applied when the traffic limit is reached. - Download only. The restriction is applied to incoming traffic only. - Both Directions. The restriction is applied to both incoming and outgoing traffic.
· Select the Connection time control radio button and enter the allowed hours in the Monthly limit field.
7. (Optional) If your ISP charges for extra data volume when you make a new connection, enter the extra data volume in MB in the Round up data volume for each connection by field.
8. In the Traffic Counter section, set the traffic counter to begin at a specific time and date. If you want the traffic counter to start immediately, click the Restart Counter Now button.
9. In the Traffic Control section, specify whether the modem router should issue a warning message before the monthly limit of Mbytes or hours is reached. By default, the value is 0 and no warning message is issued. You can select one of the following to occur when the limit is attained: · The Internet LED blinks green or amber. · The Internet connection is disconnected and disabled.
10. Click the Apply button. The Internet Traffic Statistics section helps you to monitor the data traffic.
11. To update the Traffic Statistics section, click the Refresh button. 12. To display more information about the data traffic on your modem router and to change the
poll interval, click the Traffic Status button.
View Devices Currently on the Network
You can view all computers or devices that are currently connected to your network.
 To view devices on the network: 1. Launch a web browser from a computer or mobile device that is connected to the modem router network. 2. Enter http://routerlogin.net or http://192.168.0.1. A login window opens. 3. Enter the modem router user name and password. The user name is admin. The default password is password. The user name and password are case-sensitive. The BASIC Home page displays. 4. Select Attached Devices.
Manage Your Network 89

Nighthawk AC1900 WiFi Cable Modem Router
The Attached Devices page displays. The Wired Devices section lists devices that are connected to the modem router with Ethernet cables. The Wireless Devices section lists devices that are connected to the wireless network. The following information is displayed: · Status. The status of the device, Allowed or Blocked. · Device Name. If the device name is known, it is shown here. · IP Address. The IP address that the modem router assigned to this device when it
joined the network. This number can change if a device is disconnected and rejoins the network. · MAC Address. The unique MAC address for each device does not change. The MAC address is typically shown on the product label. 5. To update this page, click the Refresh button.
Manage the Modem Router Configuration File
The configuration settings of the modem router are stored within the modem router in a configuration file. You can back up (save) this file to your computer, restore it, or reset it to the factory default settings.
Back Up Settings
 To back up the modem router's configuration settings: 1. Launch a web browser from a computer or mobile device that is connected to the modem router network. 2. Enter http://routerlogin.net or http://192.168.0.1. A login window opens. 3. Enter the modem router user name and password. The user name is admin. The default password is password. The user name and password are case-sensitive. The BASIC Home page displays.
Manage Your Network 90

Nighthawk AC1900 WiFi Cable Modem Router
4. Select ADVANCED > Administration > Backup Settings.
5. Click the Back Up button. 6. Specify a location on your network.
A confirmation message displays. 7. Click the OK button.
A copy of the current settings is saved in the location you specified.
Restore Configuration Settings
 To restore configuration settings that you backed up: 1. Launch a web browser from a computer or mobile device that is connected to the modem router network. 2. Enter http://routerlogin.net or http://192.168.0.1. A login window opens. 3. Enter the modem router user name and password. The user name is admin. The default password is password. The user name and password are case-sensitive. The BASIC Home page displays. 4. Select ADVANCED > Administration > Backup Settings. 5. Click the Browse button to find and select the .cfg file. 6. Click the Restore button. The file is uploaded to the modem router and the modem router reboots.
WARNING: Do not interrupt the reboot process.
Manage Your Network 91

Nighthawk AC1900 WiFi Cable Modem Router
Erase the Current Configuration Settings
You can erase the current configuration and restore the factory default settings. You might want to do this if you move the modem router to a different network. See Factory Settings on page 114.  To erase the configuration settings: 1. Launch a web browser from a computer or mobile device that is connected to the
modem router network. 2. Enter http://routerlogin.net or http://192.168.0.1.
A login window opens. 3. Enter the modem router user name and password.
The user name is admin. The default password is password. The user name and password are case-sensitive. The BASIC Home page displays. 4. Select ADVANCED > Administration > Backup Settings. 5. Click the Erase button. The factory default settings are restored. The user name is admin, the password is password, and the LAN IP address is 192.168.0.1. DHCP is enabled.
View Wireless Access Points in Your Area
You can view wireless networks or access points, in your area and select and join a wireless network.  To manage your wireless access point (AP): 1. Launch a web browser from a computer or mobile device that is connected to the
modem router network. 2. Enter http://routerlogin.net or http://192.168.0.1.
A login window opens. 3. Enter the modem router user name and password.
The user name is admin. The default password is password. The user name and password are case-sensitive. The BASIC Home page displays.
Manage Your Network 92

Nighthawk AC1900 WiFi Cable Modem Router
4. Select ADVANCED > Administration > Wireless AP.
This page displays the wireless access points in use in your area.
View or Change the Modem Router Wireless Channel
Laws or guidelines in many countries and geographic locations specify which channels can be used. Depending on your location, some channels might not be available. If many wireless networks at your location use the same channel as your wireless network, you might experience interference. You can change the channel to avoid the interference.  To view or change your wireless channel: 1. Launch a web browser from a computer or mobile device that is connected to the modem router network. 2. Enter http://routerlogin.net or http://192.168.0.1. A login window opens. 3. Enter the modem router user name and password. The user name is admin. The default password is password. The user name and password are case-sensitive. The BASIC Home page displays.
Manage Your Network 93

Nighthawk AC1900 WiFi Cable Modem Router
4. Select ADVANCED > Administration > Wireless Channel.
The page displays wireless channels in use in the 2.4 GHz WiFi band. Your network is shown in blue. Yellow shows other networks in your area. 5. To view wireless channels in use in the 5 GHz WiFi band, select the 5 GHz a/n radio button. 6. To change the wireless channel, click the Change Channel button. The Wireless Setup page displays. 7. In the Channel list, select a different channel setting. 8. Click the Apply button. Your settings are saved.
Dynamic DNS
Internet service providers (ISPs) assign numbers called IP addresses to identify each Internet account. Most ISPs use dynamically assigned IP addresses. This means that the IP address can change at any time. You can use the IP address to access your network remotely, but most people don't know what their IP addresses are or when this number changes. To make it easier to connect, you can get a free account with a Dynamic DNS service that lets you use a domain name to access your home network. To use this account, you must set up the modem router to use Dynamic DNS. Then the modem router notifies the Dynamic DNS service provider whenever its IP address changes. When you access your Dynamic DNS account, the service finds the current IP address of your home network and automatically connects you. If your ISP assigns a private WAN IP address (such as 192.168.x.x or 10.x.x.x), the Dynamic DNS service does not work because private addresses are not routed on the Internet.
Manage Your Network 94

Nighthawk AC1900 WiFi Cable Modem Router
Specify a DNS Account
 To set up Dynamic DNS in the modem router: 1. Launch a web browser from a computer or mobile device that is connected to the modem router network. 2. Enter http://routerlogin.net or http://192.168.0.1. A login window opens. 3. Enter the modem router user name and password. The user name is admin. The default password is password. The user name and password are case-sensitive. The BASIC Home page displays. 4. Select ADVANCED > Advanced Settings > Dynamic DNS.
5. Select the Use a Dynamic DNS Service check box. 6. In the Service Provider menu, select your service provider. 7. In the Host Name field, type the host name (sometimes called the domain name) for your
account. 8. In the User Name field, enter the user name for your account. 9. In the Password (6-32 characters) field, type the password for your DDNS account. 10. Click the Apply button.
Your changes are saved. 11. To verify that your Dynamic DNS service is enabled in the modem router, click the Show
Status button. A message displays the Dynamic DNS status.
Change the Dynamic DNS Settings
 To change your settings: 1. Launch a web browser from a computer or mobile device that is connected to the modem router network. 2. Enter http://routerlogin.net or http://192.168.0.1.
Manage Your Network 95

Nighthawk AC1900 WiFi Cable Modem Router
A login window opens. 3. Enter the modem router user name and password.
The user name is admin. The default password is password. The user name and password are case-sensitive. The BASIC Home page displays. 4. Select ADVANCED > Advanced Settings > Dynamic DNS. 5. Change your DDNS account settings as necessary. 6. Click the Apply button. Your changes are saved.
Remote Management
You can access your modem router over the Internet to view or change its settings. You must know the modem router's WAN IP address to use this feature.
Note: Be sure to change the password for the user name admin to a secure password. The ideal password contains no dictionary words from any language and contains uppercase and lowercase letters, numbers, and symbols. It can be up to 30 characters. See Change the admin Password on page 79.
 To set up remote management: 1. Launch a web browser from a computer or mobile device that is connected to the modem router network. 2. Enter http://routerlogin.net or http://192.168.0.1. A login window opens. 3. Enter the modem router user name and password. The user name is admin. The default password is password. The user name and password are case-sensitive. The BASIC Home page displays.
Manage Your Network 96

Nighthawk AC1900 WiFi Cable Modem Router
4. Select ADVANCED > Advanced Setup > Remote Management.
5. Select the Turn Remote Management On check box. 6. In the Allow Remote Access By section, specify the external IP addresses to be allowed to
access the modem router's remote management: Note: For enhanced security, restrict access to as few external IP addresses
as practical Select one of the following: · To allow access from a single IP address on the Internet, select the Only This
Computer radio button. Enter the IP address to be allowed access. · To allow access from a range of IP addresses on the Internet, select the IP Address
Range radio button. Enter a beginning and ending IP address to define the allowed range. · To allow access from any IP address on the Internet, select the Everyone radio button. 7. Specify the port number for accessing the web management interface. Normal web browser access uses the standard HTTP service port 80. For greater security, enter a custom port number for the remote web management interface. Choose a number from 1024 to 65535, but do not use the number of any common service port. The default is 8080, which is a common alternate for HTTP. 8. Click the Apply button. Your changes take effect.  To use remote access: 1. Launch an Internet browser on a computer that is not on your home network. 2. Type your modem router's WAN IP address into your browser's address or location field followed by a colon (:) and the custom port number. For example, if your external address is 134.177.0.123 and you use port number 8080, enter http://134.177.0.123:8080 in your browser.
Manage Your Network 97

9. Specify Internet Port Settings

9

You can use port forwarding and port triggering to set up rules for Internet traffic. You need networking knowledge to set up these features.
This chapter includes the following sections:
· Set Up Port Forwarding to a Local Server · Set Up Port Triggering

98

Nighthawk AC1900 WiFi Cable Modem Router
Set Up Port Forwarding to a Local Server
If your home network includes a server, you can allow certain types of incoming traffic to reach the server. For example, you might want to make a local web server, FTP server, or game server visible and available to the Internet. The modem router can forward incoming traffic with specific protocols to computers on your local network. You can specify the servers for applications and you can also specify a default DMZ server to which the modem router forwards all other incoming protocols.  To forward specific incoming protocols: 1. Decide which type of service, application, or game you want to provide. 2. Find the local IP address of the computer on your network that will provide the service.
The server computer must always use the same IP address. To specify this setting, use the reserved IP address feature. See Reserve LAN IP Addresses on page 66. 1. Launch a web browser from a computer or mobile device that is connected to the modem router network. 2. Enter http://routerlogin.net or http://192.168.0.1. A login window opens. 3. Enter the modem router user name and password. The user name is admin. The default password is password. The user name and password are case-sensitive. The BASIC Home page displays. 4. Select ADVANCED > Advanced Setup > Port Forwarding/Port Triggering.
5. Leave the Port Forwarding radio button selected as the service type. 6. In the Service Name menu, select the service name.
Specify Internet Port Settings 99

Nighthawk AC1900 WiFi Cable Modem Router
If the service that you want to add is not in the list, create a custom service. See Add a Custom Port Forwarding Service on page 100. 7. In the Server IP Address field, enter the IP address of the computer that will provide the service. 8. Click the Add button. The service displays in the list.
Add a Custom Port Forwarding Service
 To add a custom service: 1. Find out which port number or range of numbers the application uses. You can usually find this information by contacting the publisher of the application or user groups or news groups. 2. Launch a web browser from a computer or mobile device that is connected to the modem router network. 3. Enter http://routerlogin.net or http://192.168.0.1. A login window opens. 4. Enter the modem router user name and password. The user name is admin. The default password is password. The user name and password are case-sensitive. The BASIC Home page displays. 5. Select ADVANCED > Advanced Setup > Port Forwarding/Port Triggering. The Port Forwarding/Port Triggering page displays. 6. Leave the Port Forwarding radio button selected as the service type. 7. Click the Add Custom Service button.
8. In the Service Name field, enter a descriptive name. 9. In the Service Type field, select the protocol.
Specify Internet Port Settings 100

Nighthawk AC1900 WiFi Cable Modem Router
If you are unsure, select TCP/UDP. 10. In the External Starting Port field, enter the beginning port number.
If the application uses a single port, enter the same port number in the External Ending Port field. If the application uses a range of ports, enter the ending port number of the range in the External Ending Port field. 11. Specify the internal ports by one of these methods: · Leave the Use the same port range for Internal port check box selected. · Type the port numbers in the Internal Starting Port and Internal Ending Port fields. 12. Type the IP address in the Internal IP address field or select the radio button for an attached device listed in the table. 13. In the External IP address menu, select one of the following options: · Any. This options is selected by default. · Single address. Enter the external IP address. 14. Click the Apply button. The service is now in the list on the Port Forwarding/Port Triggering page.
Edit a Port Forwarding Service
 To edit a port forwarding entry: 1. Launch a web browser from a computer or mobile device that is connected to the modem router network. 2. Enter http://routerlogin.net or http://192.168.0.1. A login window opens. 3. Enter the modem router user name and password. The user name is admin. The default password is password. The user name and password are case-sensitive. The BASIC Home page displays. 4. Select ADVANCED > Advanced Setup > Port Forwarding/Port Triggering. The Port Forwarding/Port Triggering page displays. 5. Leave the Port Forwarding radio button selected as the service type. 6. In the table, select the radio button next to the service name. 7. Click the Edit Service button. The Ports - Custom Services page displays. 8. Specify changes to any of the following settings: · Service Name. Type the service name.
Specify Internet Port Settings 101

Nighthawk AC1900 WiFi Cable Modem Router
· Service Type. If you are unsure, select TCP/UDP. · External Starting Port: If the application uses a single port, enter the same port
number in the External Ending Port field. If the application uses a range of ports, enter the ending port number of the range in the External Ending Port field. · For the internal ports, leave the Use the same port range for Internal port check box selected. · Internal IP address. Type the IP address in the Internal IP address field, or select the radio button for an attached device listed in the table. 9. Click the Apply button. Your changes are saved.
Delete a Port Forwarding Entry
 To delete a port forwarding entry: 1. Launch a web browser from a computer or mobile device that is connected to the modem router network. 2. Enter http://routerlogin.net or http://192.168.0.1. A login window opens. 3. Enter the modem router user name and password. The user name is admin. The default password is password. The user name and password are case-sensitive. The BASIC Home page displays. 4. Select ADVANCED > Advanced Setup > Port Forwarding/Port Triggering. 5. Select the Port Forwarding radio button as the service type. 6. In the table, select the radio button next to the service name. 7. Click the Delete Service button.
Application Example: Make a Local Web Server Public
If you host a web server on your local network, you can use port forwarding to allow web requests from anyone on the Internet to reach your web server.
 To make a local web server public: 1. Assign your web server either a fixed IP address or a dynamic IP address using DHCP address reservation. In this example, your modem router always gives your web server an IP address of 192.168.0.33. 2. In the Port Forwarding/Port Triggering page, configure the modem router to forward the HTTP service to the local address of your web server at 192.168.0.33.
Specify Internet Port Settings 102

Nighthawk AC1900 WiFi Cable Modem Router
HTTP (port 80) is the standard protocol for web servers. 3. (Optional) Register a host name with a Dynamic DNS service, and specify that name on the
Dynamic DNS page of the modem router. Dynamic DNS makes it much easier to access a server from the Internet because you can type the name in the Internet browser. Otherwise, you must know the IP address that the ISP assigned, which typically changes.
How the Modem Router Implements the Port Forwarding Rule
The following sequence shows the effects of a port forwarding rule: 1. When you type the URL www.example.com in your browser, the browser sends a web
page request message with the following destination information: · Destination address. The IP address of www.example.com, which is the address of
your modem router. · Destination port number. 80, which is the standard port number for a web server
process. 2. Your modem router receives the message and finds your port forwarding rule for incoming
port 80 traffic. 3. The modem router changes the destination in the message to IP address 192.168.0.123
and sends the message to that computer. 4. Your web server at IP address 192.168.0.123 receives the request and sends a reply
message to your modem router. 5. Your modem router performs Network Address Translation (NAT) on the source IP address,
and sends the reply through the Internet to the computer or wireless device that sent the web page request.
Set Up Port Triggering
Port triggering is a dynamic extension of port forwarding that is useful in these cases: · An application must use port forwarding to more than one local computer (but not
simultaneously). · An application must open incoming ports that are different from the outgoing port. With port triggering, the modem router monitors traffic to the Internet from an outbound "trigger" port that you specify. For outbound traffic from that port, the modem router saves the IP address of the computer that sent the traffic. The modem router temporarily opens the incoming port or ports that you specify in your rule, and forwards that incoming traffic to that destination. Port forwarding creates a static mapping of a port number or range of ports to a single local computer. Port triggering can dynamically open ports to any computer when needed and close the ports when they are no longer needed.
Specify Internet Port Settings 103

Nighthawk AC1900 WiFi Cable Modem Router
Note: If you use applications such as multiplayer gaming, peer-to-peer connections, real-time communications such as instant messaging, or remote assistance (a feature in Windows XP), enable Universal Plug and Play (UPnP).
Add a Port Triggering Service
 To add a port triggering service: 1. Launch a web browser from a computer or mobile device that is connected to the modem router network. 2. Enter http://routerlogin.net or http://192.168.0.1. A login window opens. 3. Enter the modem router user name and password. The user name is admin. The default password is password. The user name and password are case-sensitive. The BASIC Home page displays. 4. Select ADVANCED > Advanced Setup > Port Forwarding/Port Triggering. The Port Forwarding/Port Triggering page displays. 5. Select the Port Triggering radio button. 6. Click the Add Service button.
7. In the Service Name field, type a descriptive service name. 8. In the Service User list, select Any, or select Single address and enter the IP address of
one computer: · Any (the default) allows any computer on the Internet to use this service. · Single address restricts the service to a particular computer. 9. Select the service type, either TCP or UDP or TCP/UDP (both).
Specify Internet Port Settings 104

Nighthawk AC1900 WiFi Cable Modem Router
If you are not sure, select TCP/UDP.
10. In the Triggering Starting Port, enter the beginning port number. 11. In the Triggering Ending Port field, enter the ending port number. 12. Enter the inbound connection port information in the Connection Type, Starting Port, and
Ending Port fields. 13. Click the Apply button.
The service is now in the Portmap table. You must enable port triggering before the modem router used port triggering for the service that you added. See the following section.
Application Example: Port Triggering for Internet Relay Chat
Some application servers, such as FTP and IRC servers, send replies to multiple port numbers. Using port triggering, you can tell the modem router to open more incoming ports when a particular outgoing port starts a session.
An example is Internet Relay Chat (IRC). Your computer connects to an IRC server at destination port 6667. The IRC server not only responds to your originating source port, but also sends an "identify" message to your computer on port 113. Using port triggering, you can tell the modem router, "When you initiate a session with destination port 6667, you must also allow incoming traffic on port 113 to reach the originating computer." The following sequence shows the effects of this port triggering rule:
1. You open an IRC client program to start a chat session on your computer. 2. Your IRC client composes a request message to an IRC server using a destination port
number of 6667, the standard port number for an IRC server process. Your computer then sends this request message to your modem router. 3. Your modem router creates an entry in its internal session table describing this communication session between your computer and the IRC server. Your modem router stores the original information, performs Network Address Translation (NAT) on the source address and port, and sends this request message through the Internet to the IRC server. 4. Noting your port triggering rule and observing the destination port number of 6667, your modem router creates another session entry to send any incoming port 113 traffic to your computer. 5. The IRC server sends a return message to your modem router using the NAT-assigned source port (for example, port 33333) as the destination port. The IRC server also sends an "identify" message to your modem router with destination port 113. 6. When your modem router receives the incoming message to destination port 33333, it checks its session table to see if a session is active for port number 33333. Finding an active session, the modem router restores the original address information replaced by NAT and sends this reply message to your computer. 7. When your modem router receives the incoming message to destination port 113, it checks its session table and finds an active session for port 113 associated with your computer. The modem router replaces the message's destination IP address with your computer's IP address and forwards the message to your computer.
Specify Internet Port Settings
105

Nighthawk AC1900 WiFi Cable Modem Router
8. When you finish your chat session, your modem router eventually senses a period of inactivity in the communications. The modem router then removes the session information from its session table, and incoming traffic is no longer accepted on port numbers 33333 or 113.
Specify Internet Port Settings 106

10. Troubleshooting

10

This chapter provides information to help you diagnose and solve problems you might experience with your modem router. If you do not find the solution here, check the NETGEAR support site at http://support.netgear.com for product and contact information.
The chapter contains the following sections:
· Troubleshoot With the LEDs · Troubleshoot the Cable Internet Connection · Cannot Log In to the Modem Router · Changes Not Saved · Wireless Connectivity · Troubleshoot Your Network Using the Ping Utility

107

Nighthawk AC1900 WiFi Cable Modem Router
Troubleshoot With the LEDs
You can use the LEDs on the top panel of the modem router for troubleshooting.
Power LED Is Off
· Make sure that the power adapter is securely connected to your modem router and securely connected to a working power outlet.
· Check that you are using the power adapter that NETGEAR supplied for this product. · If the problem persists, contact technical support for help at www.netgear.com/support.
LEDs Never Turn Off
When the modem router is turned on, the LEDs light for about 10 seconds and then turn off. If all the LEDs stay on, this indicates a fault within the modem router. If all LEDs are still lit one minute after power-up, do the following: · Cycle the power to see if the modem router recovers. · Press and hold the Reset button to return the modem router to its factory settings. For
more information, see Factory Settings on page 114. If the error persists, a hardware problem might be the cause. Contact technical support at www.netgear.com/support.
Internet LED Is Off
If the Internet LED is off and the modem router is connected to the cable television cable, try the following: · Make sure that the coaxial cable connections are secure at the modem router and at the
wall jack. · Make sure that your cable Internet provider provisioned your cable Internet service. Your
provider can verify that the signal quality is good enough for modem router service. · Remove any excessive splitters that on your cable line.
Troubleshoot the Cable Internet Connection
When your modem router cannot access the Internet and your Internet LED is on, register the cable MAC address or device MAC address of your modem router with your cable Internet provider. Additionally, make sure that the modem router is specified as the TCP/IP gateway for your computer. If your computer obtains its information from the modem router by DHCP, reboot the computer and verify the gateway address.
Troubleshooting 108

Nighthawk AC1900 WiFi Cable Modem Router
Cannot Log In to the Modem Router
If you are unable to log in to the modem router from a computer or mobile device on your local network, check the following: 1. Make sure that you are connected to the modem router's wired or WiFi network.
· For a wired Ethernet connection, make sure that the Ethernet connection is secure and the modem router is powered on (its Power LED is lit).
· For a WiFi connection, make sure that you selected the correct network. If you cannot find the WiFi network, make sure that the modem router is powered on (its Power LED is lit). If the modem router is powered on, it is possible someone turned off the SSID broadcast or turned off the wireless radios. See Wireless Connectivity on page 110.
2. If you are connected to the modem router network, but the web browser does not display the login window, check the following: · Make sure that Java, JavaScript, or ActiveX is enabled in your browser. If you are using Internet Explorer, click the Refresh button to be sure that the Java applet is loaded. · Try quitting the browser and launching it again.
3. If the browser displays the login window, but you cannot access the modem router, make sure that you are using the correct login information. The user name is admin, and the default password is password. Both are case-sensitive. Make sure that Caps Lock is off when you enter this information.
4. If you customized advanced home network settings such as the IP address scheme, check the following: · Make sure that the IP address of your computer is on the same subnet as the modem router. If you are using the recommended addressing scheme, your computer's address is in the range of 192.168.0.2 to 192.168.0.254. · If your computer's IP address is shown as 169.254.x.x, recent versions of Windows and Mac OS generate and assign an IP address if the computer cannot reach a DHCP server. These autogenerated addresses are in the range of 169.254.x.x. If your IP address is in this range, check the connection from the computer to the modem router, and reboot your computer. · If your modem router's IP address was changed and you do not know the current IP address, clear the modem router's configuration to factory defaults. This sets the modem router's IP address to 192.168.0.1. For more information, see Factory Settings on page 114.
Troubleshooting 109

Nighthawk AC1900 WiFi Cable Modem Router
Changes Not Saved
If the modem router does not save the changes that you make in the modem router interface, check the following: · When entering configuration settings, always click the Apply button before moving to
another page or tab, or your changes are lost. · Click the Refresh or Reload button in the web browser. The changes might be saved, but
the old settings might be in the web browser's cache.
Wireless Connectivity
If you are experiencing trouble connecting wirelessly to the modem router, try to isolate the problem: · The computer or WiFi device that you are using does not find the WiFi network.
This can happen for the following reasons: - Someone pressed the WiFi On/Off button on the modem router, which turned off the
wireless radios. Check the 2.4 GHz and 5 GHz LEDs on the front of the modem router. If they are off, press the WiFi On/Off button to turn the wireless radios back on. - Someone logged in to the modem router and disabled its wireless radios or set up a wireless schedule. In this case, pressing the WiFi On/Off button does not turn the wireless radios back on. You must log in to enable the wireless radios. Use an Ethernet cable to for a wired connection to the modem router. Then log in and change the settings. For more information, see Control the Wireless Radios on page 74. - Someone logged in to the modem router and disabled its SSID broadcast. Your wireless network is hidden and does not display in your wireless client's scanning list. (By default, SSID broadcast is enabled.) To connect with WiFi, you must type the network SSID and password. For information about how to enable the SSID broadcast, see Specify Basic WiFi Settings on page 69. · You can find the WiFi network, but you can't connect. Check the following: - Make sure that your computer or mobile device supports the security that you are using for your wireless network (WPA or WPA2). - You are not sure what the WiFi password is. The preset WiFi password is on the modem router label. If you changed it and do not remember the new password, you can use a wired Ethernet connection to log in to the modem router and view or change the WiFi password. For more information, see Change the WiFi Security Option on page 72
Troubleshooting 110

Nighthawk AC1900 WiFi Cable Modem Router
- The WiFi signal strength is weak in your location. Is your modem router too far from your computer, or too close? Place your computer near the modem router, but at least 6 feet (1.8 meters) away, and see if the signal strength improves. Check for sources of WiFi interference that might block the signal. See Position Your Modem Router on page 11.
Troubleshoot Your Network Using the Ping Utility
Most network devices and routers contain a ping utility that sends an echo request packet to the designated device. The device then responds with an echo reply. You can easily troubleshoot a network using the ping utility in your computer or workstation.
Test the LAN Path to Your Modem Router
You can ping the modem router from your computer to verify that the LAN path to your modem router is set up correctly.
 To ping the modem router from a Windows-based computer: 1. From the Windows toolbar, click Start and select Run. 2. In the field provided, type ping followed by the IP address of the modem router, as in this example: ping www.routerlogin.net 3. Click the OK button. You should see a message like this one: Pinging <IP address > with 32 bytes of data If the path is working, you see this message: Reply from < IP address >: bytes=32 time=NN ms TTL=xxx If the path is not working, you see this message: Request timed out If the path is not functioning correctly, you might be experiencing one of the following problems: · Wrong physical connections For a wired connection, make sure that the numbered LAN port LED is lit for the port to which you are connected. Check that the appropriate LEDs are on for your network devices. If your modem router and computer are connected to a separate Ethernet switch, make sure that the link LEDs are lit for the switch ports that are connected to your computer and modem router.
Troubleshooting 111

Nighthawk AC1900 WiFi Cable Modem Router
· Wrong network configuration Verify that the Ethernet card driver software and TCP/IP software are both installed and configured on your computer. Verify that the IP address for your modem router and your computer are correct and that the addresses are on the same subnet.
Test the Path From Your Computer to a Remote Device
After verifying that the LAN path works correctly, test the path from your computer to a remote device. 1. From the Windows toolbar, click the Start button and select Run. 2. In the Windows Run window, type:
ping -n 10 <IP address> where <IP address> is the IP address of a remote device such as your ISP DNS server. If the path is functioning correctly, messages like those shown in Test the LAN Path to Your Modem Router on page 111 display. If you do not receive replies, check the following: · Check to see that the IP address of your modem router is listed as the default gateway on your computer. If DHCP assigns the IP configuration of your computers, this information is not visible in your computer Network Control Panel. Verify that the IP address of the modem router is listed as the default gateway. · Check to see that the network address of your computer (the portion of the IP address specified by the subnet mask) is different from the network address of the remote device. · Check that your cable or DSL modem is connected and functioning. · If your ISP assigned a host name to your computer, enter that host name as the account name on the Internet Setup page. · Your ISP might be rejecting the Ethernet MAC addresses of all but one of your computers. Many broadband ISPs restrict access by allowing traffic only from the MAC address of your broadband modem. If your ISP additionally restricts access to the MAC address of a single computer connected to that modem, configure your modem router to "clone" or "spoof" the MAC address from the authorized computer.
Troubleshooting 112

A. Supplemental Information
This appendix covers the following topics: · Factory Settings · Technical Specifications

A

113

Nighthawk AC1900 WiFi Cable Modem Router

Factory Settings

You can return the modem router to its factory settings. Use the end of a paper clip or a similar object to press and hold the Reset button on the back of the modem router for at least seven seconds. The modem router resets, and returns to the factory configuration settings shown in the following table.
Table 3. Factory default settings

Feature Modem router login Local network (LAN)
Cable modem firewall Wireless

Default Setting

User login URL

www.routerlogin.com, www.routerlogin.net, or 192.168.0.1

User name (case-sensitive)

admin

Login password (case-sensitive) password

LAN IP

192.168.0.1

Subnet mask

255.255.255.0

DHCP server

Enabled

DHCP range

192.168.0.2 to 192.168.0.254

DHCP starting IP address

Configured by the Internet provider

DHCP ending IP address

192.168.0.254

DMZ

Disabled

Time zone

According to the ISP/MSO ToD (time of day) configuration

Time zone adjusted for daylight savings time

According to the ISP/MSO ToD (time of day) server configuration

SNMP

Enabled

Inbound (communications coming Disabled (except traffic on port 80, the HTTP port) in from the Internet)

Outbound (communications going Enabled (all) out to the Internet)

Wireless communication

Enabled

SSID name

See the modem router label

Security

WPA2-PSK (AES)

Broadcast SSID

Enabled

Supplemental Information 114

Nighthawk AC1900 WiFi Cable Modem Router

Table 3. Factory default settings (continued)

Feature
Wireless (continued)

Country/region RF channel (2.4 GHz)

Default Setting United States Auto1

RF channel (5 GHz)

CH 153 (or manually select channels)

Operating mode

Up to 600 Mbps at 2.4 GHz, 1300 Mbps at 5 GHz

1. Maximum wireless signal rate derived from IEEE Standard 802.11 specifications. Actual throughput can vary. Network conditions and environmental factors, including volume of network traffic, building materials and construction, and network overhead, lower actual data throughput rate.

Technical Specifications

Table 4. Modem router specifications

Feature Data and routing protocols Power adapter (North America) Dimensions Weight Operating temperature Operating humidity Electromagnetic emissions LAN WAN Wireless
Radio data rates Data encoding standards
Maximum computers per wireless network

Description
TCP/IP, DHCP, Dynamic DNS, UPnP, and SMB
120V, 60 Hz, input 12V/3.5A DC output
245.36 x 211 x 43.18 mm (9.66 x 8.31 x 1.7 in.)
Weight: 725.75 g (1.6 lb)
0° to 40° C (32º to 104º F)
90% maximum relative humidity, noncondensing
FCC Part 15 Class B
10BASE-T or 100BASE-TX or 1000BASE-T, RJ-45
24 x 8 DOCSIS 3.0 WAN Interface
Maximum wireless signal rate complies with the IEEE 802.11 standard. See the footnote in Factory Settings on page 114.
Auto Rate Sensing
IEEE 802.11ac 2.0 IEEE 802.11n version 2.0 IEEE 802.11n 256 QAM IEEE 802.11g, IEEE 802.11b 2.4 GHz IEEE 802.11n, IEEE 802.11a 5.0 GHz
Limited by the amount of wireless network traffic generated by each node (typically 50­70 nodes).

Supplemental Information 115

Nighthawk AC1900 WiFi Cable Modem Router

Table 4. Modem router specifications (continued)

Feature Operating frequency range
802.11 security

Description
2.4 GHz: 2.412­2.462 GHz 5 GHz: 5.18­5.825 GHz
WPA-PSK, WPA2-PSK, and WPA/WPA2

Supplemental Information 116


Acrobat Distiller 15.0 (Windows)