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T-Mobile T-Mobile 5G Home Internet Gateway (Nokia/Arcadyan/Sagemcom) default password & login IP

The T-Mobile T-Mobile 5G Home Internet Gateway (Nokia/Arcadyan/Sagemcom) has no web admin login — it's managed entirely from the manufacturer's mobile app.

For regaining access to a router you own or administer. If you didn't set it up, ask whoever did.
Login address
http://192.168.12.1
Gateway IP
192.168.12.1
Username
admin
Password
— app only —

This model has no web admin login. Manage it from the manufacturer's mobile app.

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. A web GUI also exists at http://192.168.12.1 (username admin); its default admin password is the unique value on the device label (on Arcadyan/Nokia units, revealed via the on-screen 'Where is my password?' link).

Factory reset

Hold the reset button on the gateway for ~10 seconds until it restarts. Primary management is re-run through the T-Life app; the web-GUI admin password reverts to the unique value printed on the device label.

More T-Mobile models

Source: T-Mobile Official Support — T-Mobile Internet Gateway Setupverified · updated 2026-09-07

FAQ

What is the default password for the T-Mobile T-Mobile 5G Home Internet Gateway (Nokia/Arcadyan/Sagemcom)?
The T-Mobile T-Mobile 5G Home Internet Gateway (Nokia/Arcadyan/Sagemcom) has no web admin login — it's managed entirely from the manufacturer's mobile app.
What is the default login IP for the T-Mobile T-Mobile 5G Home Internet Gateway (Nokia/Arcadyan/Sagemcom)?
The T-Mobile T-Mobile 5G Home Internet Gateway (Nokia/Arcadyan/Sagemcom) has no web admin login — it is managed entirely from the manufacturer's mobile app. Its default gateway IP on the network is 192.168.12.1.
What is the default username for the T-Mobile T-Mobile 5G Home Internet Gateway (Nokia/Arcadyan/Sagemcom)?
The T-Mobile T-Mobile 5G Home Internet Gateway (Nokia/Arcadyan/Sagemcom) has no web admin username — it is managed entirely from the manufacturer's mobile app.
How do I factory-reset the T-Mobile T-Mobile 5G Home Internet Gateway (Nokia/Arcadyan/Sagemcom)?
Hold the reset button on the gateway for ~10 seconds until it restarts. Primary management is re-run through the T-Life app; the web-GUI admin password reverts to the unique value printed on the device label.

Verification history (54)

Every time we've checked this model's default credentials, oldest first — including when nothing changed. Absence of change over time is itself the evidence.

  1. 2026-07-14First verified· app-only
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  2. 2026-07-15Re-verified, unchanged· app-only
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  3. 2026-07-20Re-verified, unchanged· app-only
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  4. 2026-07-27Re-verified, unchanged· app-only
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  5. 2026-07-27Re-verified, unchanged· app-only
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  6. 2026-07-27Re-verified, unchanged· app-only
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  7. 2026-07-27Re-verified, unchanged· app-only
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  8. 2026-07-27Re-verified, unchanged· app-only
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  9. 2026-07-27Re-verified, unchanged· app-only
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  10. 2026-07-27Re-verified, unchanged· app-only
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  11. 2026-07-27Re-verified, unchanged· app-only
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  12. 2026-07-27Re-verified, unchanged· app-only
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  13. 2026-07-27Re-verified, unchanged· app-only
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  14. 2026-07-28Re-verified, unchanged· app-only
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  15. 2026-07-28Re-verified, unchanged· app-only
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  16. 2026-07-29Re-verified, unchanged· app-only
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  17. 2026-07-29Re-verified, unchanged· app-only
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  18. 2026-07-29Re-verified, unchanged· app-only
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  19. 2026-07-29Re-verified, unchanged· app-only
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  20. 2026-07-29Re-verified, unchanged· app-only
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  21. 2026-07-30Re-verified, unchanged· app-only
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  22. 2026-07-30Re-verified, unchanged· app-only
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  23. 2026-07-30Re-verified, unchanged· app-only
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  24. 2026-07-30Re-verified, unchanged· app-only
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  25. 2026-07-30Re-verified, unchanged· app-only
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  26. 2026-07-31Re-verified, unchanged· app-only
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  27. 2026-08-02Re-verified, unchanged· app-only
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  28. 2026-08-04Re-verified, unchanged· app-only
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  29. 2026-08-04Re-verified, unchanged· app-only
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  30. 2026-08-07Re-verified, unchanged· app-only
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  31. 2026-08-08Re-verified, unchanged· app-only
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  32. 2026-08-09Re-verified, unchanged· app-only
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  33. 2026-08-10Re-verified, unchanged· app-only
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  34. 2026-08-10Re-verified, unchanged· app-only
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  35. 2026-08-10Re-verified, unchanged· app-only
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  36. 2026-08-10Re-verified, unchanged· app-only
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  37. 2026-08-10Re-verified, unchanged· app-only
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  38. 2026-08-10Re-verified, unchanged· app-only
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  39. 2026-08-12Re-verified, unchanged· app-only
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  40. 2026-08-12Re-verified, unchanged· app-only
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  41. 2026-08-16Re-verified, unchanged· app-only
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  42. 2026-08-17Re-verified, unchanged· app-only
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  43. 2026-08-17Re-verified, unchanged· app-only
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  44. 2026-08-17Re-verified, unchanged· app-only
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  45. 2026-08-24Re-verified, unchanged· app-only
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  46. 2026-08-24Re-verified, unchanged· app-only
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  47. 2026-08-27Re-verified, unchanged· app-only
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  48. 2026-08-31Re-verified, unchanged· app-only
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  49. 2026-08-31Re-verified, unchanged· app-only
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  50. 2026-09-04Re-verified, unchanged· app-only
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  51. 2026-09-04Re-verified, unchanged· app-only
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  52. 2026-09-06Re-verified, unchanged· app-only
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  53. 2026-09-06Re-verified, unchanged· app-only
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  54. 2026-09-07Re-verified, unchanged· app-only
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