T-Mobile 5G21-12W-A User Manual

T-Mobile High-Speed Internet Gateway User Guide [Issue 4.0]
Page 4
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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 5G21-12W-A Specifications

General

Brand	T-Mobile
Model	5G21-12W-A
Category	Gateway
Language	English