T-Mobile 5G21-12W-A Manual de usuario

User

Guide

5G21-12W-A

High-Speed

Internet Gateway

Release 1.0.0

Manufacturer

Nokia Solutions & Networks Oy

Karakaari 7

Fl-02610 Espoo, Finland

Import from

Nokia Solutions & Networks Oy

Distributor

T-Mobile, Inc.

T-Mobile, the T logo, Magenta, the magenta color and the T-Mobile

Home Internet logo are registered trademarks of Deutsche Telekom AG.

T-Mobile High-Speed Internet Gateway User Guide [Issue 4.0] 
Page 3 
Need help? Visit http://isp.t-mobile.com/support 
or call T-Mobile customer service at 1-844-275-9310 
Contents 
Safety guidelines.............................................................................6 
Introduction....................................................................................7 
Getting to know your T-Mobile High-Speed Internet Gateway ................8 
Physical interfaces........................................................................9 
Setting up the T-Mobile High-Speed Internet Gateway........................ 10 
Recommended setup: use the mobile app..................................... 10 
Manual setup: identify an ideal location ........................................ 10 
Connecting the T-Mobile High-Speed Internet Gateway to sustained 
power..................................................................................... 11 
Starting the T-Mobile High-Speed Internet Gateway ..................... 11 
Connecting devices ....................................................................... 12 
Connecting Wi-Fi devices ............................................................ 12 
Connecting Ethernet devices ....................................................... 12 
Viewing connected devices ......................................................... 13 
Configuring your network with the web GUI ..................................... 14 
Accessing the web GUI ............................................................... 14 
Overview screen ......................................................................... 15 
Network overview .................................................................... 15 
Internet connection ................................................................. 16 
Devices .................................................................................. 16 
Gateway information ................................................................ 16 
Status screen............................................................................. 17 
Data usage ............................................................................. 17 
SIM information....................................................................... 18 
Cellular network information ..................................................... 18 

T-Mobile High-Speed Internet Gateway User Guide [Issue 4.0] 
Page 4 
Need help? Visit http://isp.t-mobile.com/support 
or call T-Mobile customer service at 1-844-275-9310 
Ethernet connections ............................................................... 19 
Wi-Fi connections .................................................................... 19 
Statistics screen......................................................................... 20 
LAN statistics.......................................................................... 20 
Cellular statistics ..................................................................... 21 
WLAN statistics ....................................................................... 21 
Network screen .......................................................................... 22 
Wi-Fi Networks: 2.4GHz............................................................ 23 
Wi-Fi Networks: 5GHz .............................................................. 25 
System screen ........................................................................... 28 
Rebooting the T-Mobile High-Speed Internet Gateway.................. 29 
Resetting the T-Mobile High-Speed Internet Gateway................... 30 
Upgrading the firmware............................................................ 32 
Changing the web GUI password .............................................. 33 
Changing the web GUI language............................................... 34 
Logging out ............................................................................... 34 
Replacing the SIM card.................................................................. 35 
Troubleshooting............................................................................ 38 
No signal................................................................................... 38 
Prevent overheating.................................................................... 38 
T-Mobile High-Speed Internet Gateway does not start ..................... 38 
Poor Internet experience ............................................................. 38 
Forget your password?................................................................ 39 
Understanding the LCD ................................................................. 40 
Connection................................................................................ 40 
Devices ..................................................................................... 41 

T-Mobile High-Speed Internet Gateway User Guide [Issue 4.0] 
Page 5 
Need help? Visit http://isp.t-mobile.com/support 
or call T-Mobile customer service at 1-844-275-9310 
Battery ...................................................................................... 41 
Settings .................................................................................... 42 
Alerts ........................................................................................ 42 
Messages .................................................................................. 44 
Notifications .............................................................................. 44 
Technical specifications................................................................. 45 
Terms and conditions .................................................................... 46 
Privacy policy................................................................................ 46 
Manufacturer information ............................................................... 47 
Customer support ......................................................................... 47 
 
 

T-Mobile High-Speed Internet Gateway User Guide [Issue 4.0]

Page 6

Need help? Visit http://isp.t-mobile.com/support

or call T-Mobile customer service at 1-844-275-9310

Safety guidelines

Follow these guidelines when using the T-Mobile High-Speed Internet

Gateway and its battery:

Danger 1: Do not attempt to access, manipulate, insert

foreign objects into, re-manufacture or change the device

battery. Improper battery use may result in fire, explosion,

or another hazard.

Danger 2: Do not immerse or expose the device battery to

water or other liquids. Do not expose it to fire or other

explosion hazards.

Danger 3: Do not attempt to charge the device using

anything other than the power supply provided. Use of an

unqualified charger may present a risk of fire, explosion,

leakage, or other hazards.

Danger 4: Only T-Mobile authorized agents may service the

battery.

Warning 1: The T-Mobile High-Speed Internet Gateway

contains a battery which needs to be scrapped, recycled or

disposed of in accordance with local laws. Contact a T-

Mobile service center to promptly dispose of used or

ineffective batteries in accordance with local regulations.

Warning 2: If the T-Mobile High-Speed Internet Gateway is

dropped—especially on a hard surface—or in the case of

suspected damage, contact your nearest T-Mobile service

center for inspection.

NOTE

Review the safety and regulatory notice included with the T-Mobile High-

Speed Internet Gateway.

T-Mobile High-Speed Internet Gateway User Guide [Issue 4.0]

Page 7

Need help? Visit http://isp.t-mobile.com/support

or call T-Mobile customer service at 1-844-275-9310

Introduction

Thank you for purchasing the T-Mobile High-Speed Internet Gateway

[model 5G21-12W-A].

This document explains how to operate the T-Mobile High-Speed

Internet Gateway at home using visual cues to achieve the best

placement and performance.

The contents of this guide are subject to change without notice.

NOTE

This document is a supplement to the Quick Start Guide and T-Mobile

Home Internet mobile app.

Use the Quick Start Guide to get up and running quickly.

T-Mobile High-Speed Internet Gateway User Guide [Issue 4.0]

Page 8

Need help? Visit http://isp.t-mobile.com/support

or call T-Mobile customer service at 1-844-275-9310

Getting to know your T-Mobile High-Speed

Internet Gateway

You will find the following items in the box:

•(1) Gateway

•(1) AC/DC power adapter

•(1) Ethernet cable

•(1) Quick Start Guide

•(1) T-Mobile Terms and Conditions

•(1) Safety and Regulatory Notice

The gateway offers 4G/LTE or 5G (FDD and

TDD) WAN mobile network connectivity by way of four wideband OMNI

antennas that supports all LTE/5G bands. It functions as the connection

point between the WAN outside your home and the LAN inside your

home.

NOTE

Coverage not available in some areas.

5G: Not all devices, signals, or uses are compatible; check your

device specifications. See T-Mobile.com for 5G coverage, access,

and network management details.

T-Mobile High-Speed Internet Gateway User Guide [Issue 4.0]

Page 9

Need help? Visit http://isp.t-mobile.com/support

or call T-Mobile customer service at 1-844-275-9310

Physical interfaces

The gateway's physical interfaces include those shown in the diagram.

NOTE

The USB-C and RJ-11 voice ports currently are not functional.

T-Mobile High-Speed Internet Gateway User Guide [Issue 4.0]

Page 10

Need help? Visit http://isp.t-mobile.com/support

or call T-Mobile customer service at 1-844-275-9310

Setting up the T-Mobile High-Speed

Internet Gateway

Recommended setup: use the mobile app

Using the Quick Start Guide and the T-Mobile Home Internet mobile app

provides the easiest setup experience. The T-Mobile Home Internet

mobile app can be downloaded from either Google Play or the App

Store.

Use the following instructions for managed setup only if you are unable

to use the mobile app.

Manual setup: identify an ideal location

You will start by identifying the ideal location for your gateway—that

location will meet the following criteria:

•Near a window where the signal strength is strongest

•In an open space away from:

▪Walls or obstructions

▪Heavy-duty appliances or electronics such as microwave

ovens and baby monitors

▪Metal fixtures, enclosures, cabinets, reinforced concrete,

or pipes

•Near a power outlet

•On an upper floor of the home or at least 6 feet off the floor

The following procedure will help determine the best location for your

gateway.

NOTE

Once you find a good signal, do not reposition the device. If the

position changes, you may need to verify the signal strength again.

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