MikroTik RB911G-5HPnD Wireless Router User Manual

1. Introduction

This user manual provides comprehensive instructions for the MikroTik RB911G-5HPnD wireless router. This device is a compact wireless router featuring an integrated 5GHz high-power wireless card and a Gigabit Ethernet port, designed to maximize 802.11n wireless speeds. It also incorporates built-in 16kV ESD protection on both the Ethernet and MMCX ports. Please read this manual carefully before operating the device to ensure proper setup and functionality.

2. Safety Information

Always ensure the device is powered off before performing any installation or maintenance.
Use only the power adapter supplied or recommended by MikroTik to prevent damage and ensure safety.
Do not expose the device to water, moisture, or extreme temperatures.
Install the device in a well-ventilated area to prevent overheating.
This device is intended for indoor use unless specifically rated for outdoor environments.
The device features 16kV ESD protection; however, proper grounding practices should still be observed during installation.

3. Package Contents

Verify that your package contains the following items:

MikroTik RB911G-5HPnD Wireless Router Unit
Power Adapter (may be sold separately depending on region/bundle)

4. Hardware Overview

The RB911G-5HPnD is designed with essential components for high-performance wireless routing. Below is an illustration of the device's internal layout, highlighting key features.

Internal view of MikroTik RB911G-5HPnD router board showing CPU, RAM, wireless chip, and Ethernet port.

Figure 1: Internal view of the MikroTik RB911G-5HPnD router board. This image displays the main components including the CPU, RAM, 5GHz wireless chip, Gigabit Ethernet port, and various other integrated circuits. The board is marked with "RouterBOARD 912G 5HPnD" and "FCC CE" compliance logos. The image also highlights the 16kV ESD protection components.

Key hardware features include:

Gigabit Ethernet Port: One 10/100/1000 Ethernet port for high-speed wired connections.
5GHz Wireless Card: Integrated 802.11a/n wireless card with 2 chains, supporting up to 300 Mbit/s data rate.
ESD Protection: Built-in 16kV ESD protection on both Ethernet and MMCX ports.
PoE Input: Supports Passive PoE for power input (8-30V).

5. Setup

Follow these steps for initial setup of your RB911G-5HPnD router:

Power Connection: Connect the power adapter to the device's power input jack or use a Passive PoE injector/switch to power the device via the Ethernet port. The device supports 8-30V DC input.
Ethernet Connection: Connect an Ethernet cable from your computer to the Gigabit Ethernet port on the RB911G-5HPnD.
Initial Access: Open a web browser on your computer and navigate to the default IP address (usually 192.168.88.1). Log in using the default username (admin) and an empty password (if not set).
RouterOS Configuration: Upon first login, you will be prompted to configure the device using RouterOS. It is recommended to update the RouterOS to the latest version and set a strong password for the admin user.

6. Operating Instructions

The RB911G-5HPnD operates on MikroTik's RouterOS, offering extensive configuration options. Here are basic operating guidelines:

Wireless Configuration:
Access the Wireless interface settings in RouterOS. Configure the 5GHz wireless band (802.11a/n) by setting the SSID, security protocols (WPA2 recommended), and channel. Ensure your client devices support 5GHz connectivity.
Network Settings:
Configure IP addresses, DHCP server, and routing rules as needed for your network environment. RouterOS Level 3 license allows for basic routing functionalities.
Firewall and Security:
Utilize RouterOS's firewall features to secure your network. Create rules to filter traffic and protect against unauthorized access.
Monitoring:
Monitor device performance, wireless signal strength, and network traffic through the RouterOS interface or WinBox utility.

7. Maintenance

Regular maintenance ensures optimal performance and longevity of your device:

Firmware Updates: Regularly check for and install the latest RouterOS firmware updates from the official MikroTik website (mikrotik.com). Updates often include security patches and performance improvements.
Configuration Backup: Periodically back up your RouterOS configuration. This allows for quick restoration in case of misconfiguration or device replacement.
Physical Inspection: Ensure the device is free from dust and debris. Maintain proper ventilation around the unit.
Password Management: Change default passwords and use strong, unique passwords for all administrative accounts.

8. Troubleshooting

If you encounter issues with your RB911G-5HPnD, refer to the following common problems and solutions:

Problem	Possible Solution
Device not powering on	Verify the power adapter is correctly connected and functioning. Check the power source. If using PoE, ensure the PoE injector/switch is providing power within the 8-30V range.
Cannot access RouterOS interface	Ensure your computer is directly connected to the router's Ethernet port. Check your computer's IP settings to ensure it's in the same subnet as the router (e.g., 192.168.88.x). Try resetting the device to factory defaults (refer to MikroTik documentation for the reset procedure).
No wireless connectivity	Check if the 5GHz wireless interface is enabled in RouterOS. Verify SSID, security settings, and password. Ensure client devices support 5GHz 802.11a/n.
Slow network speeds	Check for interference on the 5GHz band. Ensure the Gigabit Ethernet port is negotiating at 1000Mbps. Update RouterOS firmware.

9. Specifications

Detailed technical specifications for the MikroTik RB911G-5HPnD:

CPU Nominal Frequency: 600 MHz
RAM Size: 64 MB
Storage Size: 128 MB
Ethernet Ports: 1 x 10/100/1000 Gigabit Ethernet
Wireless: Integrated 5 GHz (802.11a/n), 2 chains, Max data rate 300 Mbit/s
PoE Input: Passive PoE (8-30 V)
ESD Protection: 16kV on Ethernet and MMCX ports
Dimensions: 105 x 105 mm
Operating System: RouterOS L3
Item Weight: Approximately 1 pound

10. Warranty and Support

MikroTik products are covered by a limited manufacturer's warranty. For specific warranty terms and conditions, please refer to the documentation included with your purchase or visit the official MikroTik website.

For technical support, firmware downloads, and additional resources, please visit the official MikroTik support portal:

https://mikrotik.com/support

Always ensure you are using official MikroTik resources for support and software to maintain device integrity and security.

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