T-Mobile T-Mobile 5G Home Internet Gateway (Nokia/Arcadyan/Sagemcom) Login
The T-Mobile T-Mobile 5G Home Internet Gateway (Nokia/Arcadyan/Sagemcom) is a modem-router (gateway) whose admin page answers on 192.168.12.1. It has no browser admin page; everything is done in the manufacturer’s app.
192.168.12.1 Login
Login address: 192.168.12.1
Password: App only (no web login)
Contents
T-Mobile T-Mobile 5G Home Internet Gateway (Nokia/Arcadyan/Sagemcom) default login
| Model | Login address | Username | Password | Source |
|---|---|---|---|---|
| T-Mobile 5G Home Internet Gateway (Nokia/Arcadyan/Sagemcom) | 192.168.12.1 | — | App only (no web login) | Official doc |
Checked against T-Mobile Official Support — T-Mobile Internet Gateway Setup on 31 Aug 2026 (high confidence), via the ssid.ai dataset (CC BY 4.0).
“US 5G fixed-wireless home gateway. Primary setup and management is through the T-Life app with your T-Mobile ID — there is no universal admin password.”
How to manage the T-Mobile T-Mobile 5G Home Internet Gateway (Nokia/Arcadyan/Sagemcom)
This model is set up and managed in the manufacturer’s app. Sign in with the account you used during setup, then open the Wi-Fi settings to change the network name and password.
If the login does not work
- Someone may have changed it. A factory reset restores the login above.
- Reset: hold the Reset button for about 10 seconds while the device is powered on.
- Wrong address? Check your default gateway — see how to find your router’s IP.
- Type
http://, not https://, and turn off any VPN or Private DNS.
More help
- T-Mobile Home Internet login guide
- 192.168.12.1 login page
- Default router password list
- How to reset a router
Frequently asked questions
What is the default password for the T-Mobile T-Mobile 5G Home Internet Gateway (Nokia/Arcadyan/Sagemcom)?
App only (no web login).
What is the T-Mobile T-Mobile 5G Home Internet Gateway (Nokia/Arcadyan/Sagemcom) IP address?
The admin page is at 192.168.12.1.
How do I reset the T-Mobile T-Mobile 5G Home Internet Gateway (Nokia/Arcadyan/Sagemcom)?
Hold the Reset button for about 10 seconds while the device is powered on.