TMOG5AR 5G Home Internet Gateway
“
Product Information
Specifications:
- Product Name: TMO-G5AR 5G Gateway
- Release Version: 1.0.0
- Manufacturer: Arcadyan Technology Corporation
- Address: No.8, Sec.2, Guangfu Rd., Hsinchu City 30071,
Taiwan
Product Usage Instructions
Getting to Know Your T-Mobile 5G Gateway:
The T-Mobile 5G Gateway comes with physical interfaces for
connectivity.
Setting up the T-Mobile 5G Gateway:
There are two ways to set up the gateway:
- Recommended Setup: Use the T-Mobile Internet
mobile app for an easy setup process. - Manual Setup: Identify an ideal location for
the gateway ensuring proper positioning.
Factory Resetting the T-Mobile 5G Gateway:
Instructions on how to perform a factory reset on the
gateway.
Troubleshooting:
Guidelines on how to troubleshoot common issues with the
T-Mobile 5G Gateway.
Safety Guidelines:
Important safety precautions to prevent equipment damage and
ensure user safety.
Frequently Asked Questions (FAQ):
Q: Where can I get help if I encounter issues
with my T-Mobile 5G Gateway?
A: You can visit
https://www.t-mobile.com/internethelp or call T-Mobile customer
service at 1-844-275-9310 or Metro support service at 1-888-8Metro8
for assistance.
“`
User Guide
TMO-G5AR 5G Gateway
Release 1.0.0 Manufacturer
Import from Distributor
Arcadyan Technology Corporation No.8, Sec.2, Guangfu Rd., Hsinchu City 30071, Taiwan
Arcadyan Technology Corporation
T-Mobile USA, Inc.
© 2025 T-Mobile USA, Inc. All rights reserved.
T-Mobile, the T logo, Magenta, the magenta color and the T-Mobile Internet logo are registered trademarks of Deutsche Telekom AG.
T-Mobile 5G Gateway User Guide
Contents
Safety Guidelines………………………………………………………………………………………………………………5 Potential Equipment Damage ………………………………………………………………………………………5 Risk of Electric Shock or Fire ………………………………………………………………………………………..5 Operation Environment…………………………………………………………………………………………………6
Introduction ………………………………………………………………………………………………………………………6 Getting to Know Your T-Mobile 5G Gateway …………………………………………………………………….7
Physical Interfaces………………………………………………………………………………………………………..7 Setting up the T-Mobile 5G Gateway ………………………………………………………………………………. 8
Recommended Setup: Use the T-Mobile Internet mobile app…………………………………….. 8 Manual Setup: Identify An Ideal Location……………………………………………………………………. 8
Connecting Power to the T-Mobile 5G Gateway……………………………………………………….9 Starting the T-Mobile 5G Gateway……………………………………………………………………………9 Connecting Devices ………………………………………………………………………………………………………..10 Connecting Wi-Fi Devices …………………………………………………………………………………………..10 Connecting Ethernet Devices ……………………………………………………………………………………..10 Viewing Connected Devices ……………………………………………………………………………………….10 Accessing Your Web GUI (Graphical User Interface)………………………………………………………. 11 Home Screen ……………………………………………………………………………………………………………… 11 Language Selection ……………………………………………………………………………………………….. 12 Support Screen……………………………………………………………………………………………………………12 Replacing the SIM Card …………………………………………………………………………………………………..13
Page 3 Need help? Visit https://www.t-mobile.com/internethelp
or call T-Mobile customer service at 1-844-275-9310 Metro support service at 1-888-8Metro8
T-Mobile 5G Gateway User Guide
Factory Resetting the T-Mobile 5G Gateway ………………………………………………………….14 Troubleshooting ………………………………………………………………………………………………………………14
No Internet ………………………………………………………………………………………………………………….14 No Signal……………………………………………………………………………………………………………………..15 Prevent Overheating……………………………………………………………………………………………………15 T-Mobile 5G Gateway Does Not Start …………………………………………………………………………15 Poor Internet Experience …………………………………………………………………………………………….15 Forget Your Admin Password?…………………………………………………………………………………….15 Understanding the LCD …………………………………………………………………………………………………..15 Connection ………………………………………………………………………………………………………………….16 Devices………………………………………………………………………………………………………………………..16 Internet Line Number …………………………………………………………………………………………………. 17 Messages……………………………………………………………………………………………………………………. 17 Language Settings…………………………………………………………………………………………………….. 20 Technical Specifications………………………………………………………………………………………………….21 Terms and Conditions ……………………………………………………………………………………………………. 22 Privacy Policy ………………………………………………………………………………………………………………… 22 Customer Support …………………………………………………………………………………………………………. 22
Page 4 Need help? Visit https://www.t-mobile.com/internethelp
or call T-Mobile customer service at 1-844-275-9310 Metro support service at 1-888-8Metro8
T-Mobile 5G Gateway User Guide
Safety Guidelines
Potential Equipment Damage
Follow these recommendations to protect yourself and the 5G Gateway from harm: Use the 5G Gateway only in upright position as shown in the Quick Start Guide. Do not insert any sharp object into the openings of the 5G Gateway. Do not put the 5G Gateway near a heat source. Avoid placing the 5G Gateway in areas where the gateway will be in intense or prolonged direct
sunlight. The 5G Gateway is intended for indoor use only. Do not use the 5G Gateway outside, and make
sure all the connections are indoors. Do not put the 5G Gateway in damp or wet locations; for example, near a bathtub, washbowl,
kitchen sink or laundry tub, in a wet basement, or near a swimming pool. Do not spill any liquid on the 5G Gateway. Do not touch the 5G Gateway or its power adapter or cord with wet hands. Do not place the 5G Gateway on an unstable surface or support. Do not place anything on top of the 5G Gateway. Do not use liquid or aerosol cleaners; unplug the 5G Gateway and use a soft, dry cloth for cleaning. When connecting a PC or other electronic device to the 5G Gateway, make sure you use the provided cables and connect the device to the right port of the gateway. Incorrect connections may damage the device and/or the 5G Gateway. Do not open or try to open the 5G Gateway. Opening or removing covers can expose you to dangerous high voltage points or other risks. Do not attempt to access, manipulate, insert foreign objects into, remanufacture, or immerse or otherwise expose it to water. Use care to avoid accidental drops or sprays of water on the 5G Gateway. If the T-Mobile 5G Gateway is dropped–especially on a hard surface–or in the case of suspected damage, contact your nearest T-Mobile service center for inspection.
Risk of Electric Shock or Fire
Follow these guidelines when using the T-Mobile 5G Gateway: Connect the power adapter or cord to the right supply voltage (120V AC in USA). Pay attention to the power load of the electrical outlet and possible extension cord. An overburdened power outlet or damaged cords and plugs may cause electric shock or fire. Check the power adapter regularly. If you find any damage, replace the power adapter
immediately.
Page 5
Need help? Visit https://www.t-mobile.com/internethelp or call T-Mobile customer service at 1-844-275-9310 Metro support service at 1-888-8Metro8
T-Mobile 5G Gateway User Guide
Do not connect the plug into an extension cord, receptacle, or other outlet unless the plug can be fully inserted with no part of the blades exposed.
Leave adequate space for heat dissipation to avoid any damage caused by overheating the 5G Gateway.
Do not cover the 5G Gateway or its ventilation holes. Blocking the ventilation holes may cause fire.
Use the power adapter provided with your 5G Gateway and do not fasten the power cable to building surfaces.
Ensure the cable can move freely. Do not place heavy objects on the cable. Do not use the 5G Gateway outside, and make sure all the connections are indoors. Do not install, use, or service the 5G Gateway during a thunderstorm. There is a remote risk of electric shock from lightning. The standby power consumption of the 5G Gateway is 4.5W.
Operation Environment
FCC regulations restrict operation of this device to indoor use only. The operation of this device is prohibited on oil platforms, cars, trains, boats, and aircraft,
except that operation of this device is permitted in large aircraft while flying above 10,000 feet in the 5.925-6.425 GHz band. Operation of transmitters in the 5.925-7.125 GHz band is prohibited for control of or communications with unmanned aircraft systems.
Introduction
This document explains how to operate the T-Mobile 5G Gateway at home using visual cues to achieve the best placement and performance.
NOTE This document is a supplement to the Setup Information and T-Mobile Internet mobile app. Use the Setup Information to get up and running quickly.
The contents of this guide are subject to change without notice.
Page 6 Need help? Visit https://www.t-mobile.com/internethelp
or call T-Mobile customer service at 1-844-275-9310 Metro support service at 1-888-8Metro8
T-Mobile 5G Gateway User Guide
Getting to Know Your T-Mobile 5G Gateway
You will find the following items in the box: Gateway Power Adapter Setup Information T-Mobile Terms and Conditions Safety and Regulatory Notice The gateway offers 4G/LTE or 5G/NR WAN (Wide Area Network) mobile network connectivity by way of four wide band omni that supports all LTE/5G bands. It functions as the connection point between the WAN outside your home and the LAN (Local Area Network) inside your home.
Physical Interfaces
The gateway’s physical interfaces include those shown in the following diagrams.
Page 7 Need help? Visit https://www.t-mobile.com/internethelp
or call T-Mobile customer service at 1-844-275-9310 Metro support service at 1-888-8Metro8
T-Mobile 5G Gateway User Guide
Setting up the T-Mobile 5G Gateway
Recommended Setup: Use the T-Mobile Internet mobile app
Using the Quick Start Guide and the T-Mobile Internet mobile app provides the easiest and best setup experience. The T-Mobile Internet mobile app can be downloaded from either Google Play Store or the Apple App Store.
NOTE The first time you setup your gateway, “How to navigate this interface” displays on the LCD panel. Select “OK” to continue the start up.
Download the T-Mobile Internet app onto your smart phone. Follow the on-screen prompts in app and complete first time setup. Then the app establishes communication and connects to the gateway.
Manual Setup: Identify An Ideal Location
Start by identifying the ideal location for your gateway — that location will meet the following criteria: Position the 5G Gateway on elevated surface for getting the best signal strength Near a window where the signal strength is strongest
NOTE Low-e glass windows may weaken signal strength. Avoid placing the 5G Gateway near low-e glass windows.
In an open space away from: · Basements · Devices that may cause interference such as Wi-Fi routers · Behind TVs or monitors · Walls or obstructions · Heavy-duty appliances or electronics such as microwave ovens and baby monitors · Metal fixtures, enclosures, cabinets, reinforced concrete, or pipes
Page 8 Need help? Visit https://www.t-mobile.com/internethelp
or call T-Mobile customer service at 1-844-275-9310 Metro support service at 1-888-8Metro8
T-Mobile 5G Gateway User Guide
Near a power outlet On an upper floor of the home or at least 6 feet off the floor
Connecting Power to the T-Mobile 5G Gateway
Place the gateway on a flat surface, such as a tabletop or similar; close to a window and near an electrical outlet
Minimize the number of obstructions as much as possible Connect the provided USB Type-C power cable to gateway’s power port, then plug the other
end of the power cable into a grounded electrical outlet The USB Type-C power cable must be capable of supporting 100240V (volts) AC adapter,
5060Hz frequency and 3A of current at DC 20V
Starting the T-Mobile 5G Gateway
After the gateway is connected to a power source, the LCD screen displays an animated T-Mobile logo that indicates the gateway is starting up. Five small dots displayed on the LCD panel indicates available screens of: Connection Devices Internet Line Number Messages Language Take a moment to browse these screens to see what information is available. For more information about the LCD screen display, refer to the section “Understanding the LCD” on page 15. When the start up sequence is complete, the LCD displays the Connection screen.
Page 9 Need help? Visit https://www.t-mobile.com/internethelp
or call T-Mobile customer service at 1-844-275-9310 Metro support service at 1-888-8Metro8
T-Mobile 5G Gateway User Guide
Connecting Devices
Connecting Wi-Fi Devices
Connect your wireless devices to your network using the Wi-Fi SSID (Wi-Fi name) and Wi-Fi Key (Wi-Fi password), which are found on the gateway’s rear panel. Here is an example of the label:
The QR code on the label provides easy set up when the T-Mobile Internet mobile app is installed.
Connecting Ethernet Devices
The gateway has two (2) Ethernet LAN ports. Use an Ethernet cable to connect devices that don’t have Wi-Fi adapters or capabilities.
Viewing Connected Devices
The Devices LCD screen on the front of the gateway shows the number of devices currently connected to the network by way of either Wi-Fi or Ethernet.
To view how many devices are connected: 1. Observe the LCD Connection screen 2. Press the right arrow on the LCD panel to display the Devices screen
Page 10 Need help? Visit https://www.t-mobile.com/internethelp
or call T-Mobile customer service at 1-844-275-9310 Metro support service at 1-888-8Metro8
T-Mobile 5G Gateway User Guide
Accessing Your Web GUI (Graphical User Interface)
NOTE You can configure the gateway and any connected client devices via the T-Mobile Internet mobile app on a smartphone. Ensure the Local Area Connection setting on your PC, laptop, smart phone, or tablet is configured to obtain an IP address automatically. On your device, open a web browser, and enter http://192.168.12.1 NOTE If you are unable to access the GUI at the above address, please contact customer support.
Home Screen
You should now see the dashboard screen, which provides network connection status and information about the gateway.
Page 11 Need help? Visit https://www.t-mobile.com/internethelp
or call T-Mobile customer service at 1-844-275-9310 Metro support service at 1-888-8Metro8
T-Mobile 5G Gateway User Guide The Home screen contains four sections: Connection status: shows network status of the connected devices, the gateway, and the
T-Mobile network connection Connection quality: signal strength is represented by number of bars Gateway information
· Firmware version: variable · UI version: variable · Serial Number: variable · Running Time: how long it has been since the gateway’s last reset/power-cycle T-Mobile Internet mobile app: scanning the QR code with your smart phone and downloading the mobile app for the easiest setup experience NOTE Gateway settings are available in the T-Mobile Internet mobile app.
Language Selection
From the GUI’s top-right corner of the screen, select your preferred language, English or Español, from the dropdown menu for user interface language.
Support Screen
Use the Support tab for useful FAQ and T-Mobile Community Forum links, and customer support information.
Page 12 Need help? Visit https://www.t-mobile.com/internethelp
or call T-Mobile customer service at 1-844-275-9310 Metro support service at 1-888-8Metro8
T-Mobile 5G Gateway User Guide
Replacing the SIM Card
The gateway comes with a pre-installed SIM card. You can replace the SIM card by pop opening the SIM tray. Before replacing the SIM card, please read the following safety information.
Danger 1: Hazardous electrical voltages and currents can cause serious physical harm.
! Always use insulated tools and follow proper safety precautions when connecting or disconnecting power circuits. Danger 2: Ensure the gateway’s power supply is unplugged from the power strip or wall outlet before proceeding. Caution: Keep indoor devices out of direct sunlight. Prolonged exposure to direct sunlight
! can damage the device. Refer to the section “Technical Specifications” for the gateway’s operating temperature ranges. Access the SIM card slot from the bottom side of the gateway. 1. Power off the gateway by removing the power cable from the electrical outlet and from the gateway 2. Remove any Ethernet cables connected to the gateway’s LAN ports (LAN1 and LAN 2) 3. Insert a SIM ejector pin or a paper clip into the hole next to the SIM tray 4. Gently push in towards the gateway until the tray pops out
5. Slide the tray out from the gateway 6. Carefully remove the pre-installed SIM card out of the tray 7. Place the new SIM card into the tray with the notch on the SIM card aligned with the notch on
the tray Page 13
Need help? Visit https://www.t-mobile.com/internethelp or call T-Mobile customer service at 1-844-275-9310 Metro support service at 1-888-8Metro8
T-Mobile 5G Gateway User Guide
8. Replace the SIM tray back into your gateway
Factory Resetting the T-Mobile 5G Gateway
Resetting the T-Mobile 5G Gateway to factory default deletes all configuration changes made since setup.
Using the Reset Button
You can reset the gateway using a paperclip and the Reset Button, which is located on the device’s bottom side. 1. Press-and-hold a paperclip in the Reset Button for 5 seconds 2. Withdraw the paperclip. LCD shows:
· Factory reset in progress · T-Mobile animated logo · Power up animation 3. On the LCD, press OK and you will see the Connection screen
Troubleshooting
No Internet
Verify device is powered on with LCD screen Check SIM card is present and seated correctly Try placing the gateway in a different location Try factory reset
Page 14 Need help? Visit https://www.t-mobile.com/internethelp
or call T-Mobile customer service at 1-844-275-9310 Metro support service at 1-888-8Metro8
T-Mobile 5G Gateway User Guide
No Signal
This LCD alert indicates there is no network signal, which could mean local cellular equipment is down for any number of reasons, or the gateway may need to be re- positioned.
If the connection does not improve in a reasonable amount of time, you can contact T- Mobile customer service or refer to the section “Manual Setup: Identify An Ideal Location”.
Prevent Overheating
Avoid prolonged exposure to the direct sunlight, particular in warm climates. Also, make sure that obstacles never obstruct airflow vents on the top or bottom of the gateway’s enclosure. Allow at least 100mm/4in clearance on all sides of the enclosure. Ensure the gateway is at least 3 feet from baseboard heaters.
If the gateway feels hot to touch, unplug it immediately and let the device cool before plugging it in again.
T-Mobile 5G Gateway Does Not Start
If the gateway does not start up, verify the provided power adapter is connected to a working outlet and plugged into the power USB-C port on the gateway. If the gateway is connected to an outlet and power still does not start, contact T-Mobile technical support.
Poor Internet Experience
If you feel your overall internet experience is poor, try repositioning the gateway; refer to the section “Manual Setup: Identify An Ideal Location”.
Forget Your Admin Password?
If you configure a custom admin password and forget it, use the password reset function found within the T-Mobile Internet mobile app to reset the password to factory default.
Understanding the LCD
The gateway’s LCD is located on front of the device. The LCD serves as a dashboard where you can quickly obtain information of the following types: Connection Devices Internet Line Number Messages Language Settings
Page 15 Need help? Visit https://www.t-mobile.com/internethelp
or call T-Mobile customer service at 1-844-275-9310 Metro support service at 1-888-8Metro8
T-Mobile 5G Gateway User Guide Press left or right arrow ( < or > ) on the LCD panel with your finger to move between screens. The position of the illuminated dot on the bottom of the screen indicates where you are in the screen sequence. The Connection screen is the first displayed after a successful start up sequence.
Connection
Like your phone, the gateway displays up to five bars on its Connection screen, indicating signal strength. The number of bars you see represents the strength of the gateway’s current connection to the cellular network. An X indicates the gateway is not connected to the T-Mobile network.
Devices
The Devices screen indicates how many devices are currently connected to the gateway. This is true for both wireless and wired devices.
Page 16 Need help? Visit https://www.t-mobile.com/internethelp
or call T-Mobile customer service at 1-844-275-9310 Metro support service at 1-888-8Metro8
Internet Line Number
T-Mobile 5G Gateway User Guide
The Internet Line Number screen displays your internet number of the SIM card installed.
Messages
These messages come from the T-Mobile network and may provide outage information or other important updates. The Messages screen allows you to view the message contents by pressing < and > to scroll between messages. To delete a message: 1. Press O (OK) on the panel to select VIEW MESSAGES and view unread messages
Page 17 Need help? Visit https://www.t-mobile.com/internethelp
or call T-Mobile customer service at 1-844-275-9310 Metro support service at 1-888-8Metro8
2. Select NEXT and read next message
T-Mobile 5G Gateway User Guide
3. Select DONE when your read all messages
4. Select DELETE to delete a message
Page 18
Need help? Visit https://www.t-mobile.com/internethelp or call T-Mobile customer service at 1-844-275-9310 Metro support service at 1-888-8Metro8
T-Mobile 5G Gateway User Guide 5. When prompted a message of asking you to confirm deletion, select YES to confirm
6. Select DONE when you finish
Page 19 Need help? Visit https://www.t-mobile.com/internethelp
or call T-Mobile customer service at 1-844-275-9310 Metro support service at 1-888-8Metro8
T-Mobile 5G Gateway User Guide
Language Settings
The gateway supports both English and Spanish on its LCD. You may change the language by doing: 1. From the Language screen, select CHANGE
2. From the Language screen, choose English or Español
3. Press O (OK) on the panel to set the language
Page 20 Need help? Visit https://www.t-mobile.com/internethelp
or call T-Mobile customer service at 1-844-275-9310 Metro support service at 1-888-8Metro8
T-Mobile 5G Gateway User Guide
Technical Specifications
Dimensions Weight
Operating environment
IoT / GPS
Power adapter Power input Theoretical power consumption Wi-Fi connectivity
Security Buttons
Display
Mobile Band
Physical Interfaces
235 (H) x 187 (W) x 74 (D) mm
1470 g 3.24 lbs
0 to 40 oC 32 to 104 oF
Bluetooth 5.1, Matter, Zigbee, Thread GPS AC 100 240V, 50/60Hz 3A @ DC 20V
60 W
11ax/11be 4×4 – 2.4G/5G/6G Seamless roaming
WPA/WPA2/WPA3
Reset (recessed switch) Arrow Keys (Left & Right) Enter (OK)
TFT LCD Non-Touch Panel 2.4-Inch 240×320 Resolution
5G NR: n25, n41, n48, n66, n71, n77 (DoD and C-Band) 4G LTE: B2, B4, B5, B12, B66, B71
GE LAN (Yellow) SIM Card Socket (4FF Only) USB Type C x 1 (Regular Power Source) USB Type C x 1 (Data and other USB Port Purpose)
Page 21
Need help? Visit https://www.t-mobile.com/internethelp or call T-Mobile customer service at 1-844-275-9310 Metro support service at 1-888-8Metro8
Terms and Conditions
t-mobile.com/responsibility/legal/terms-and-conditions
Privacy Policy
t-mobile.com/privacy-center/our-practices/privacy-policy
Customer Support
24/7 Tech Support Line: 1-844-275-9310 Metro Support Line: 1-888-8Metro8
T-Mobile 5G Gateway User Guide
Page 22
Need help? Visit https://www.t-mobile.com/internethelp or call T-Mobile customer service at 1-844-275-9310 Metro support service at 1-888-8Metro8
Documents / Resources
 |
T Mobile TMOG5AR 5G Home Internet Gateway [pdf] User Guide TMOG5AR, RAXTMOG5AR, TMOG5AR 5G Home Internet Gateway, TMOG5AR, 5G Home Internet Gateway, Internet Gateway, Gateway |