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TP-Link Deco M4 default password & login IP

The TP-Link Deco M4 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.
Username
— app only —
Password
— app only —

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

Deco M4 units are managed the way every Deco is: from the phone app, tied to a TP-Link ID login. No browser-based admin page exists, so no factory admin/admin can exist either. Whoever runs the initial install picks the wireless name and passphrase.

Factory reset

With a pin, depress Reset on the bottom of the node for about a second. The light flashes yellow while clearing, turns steady yellow while restarting, and pulses blue once defaults are restored. Setup then starts over inside the Deco app after you sign in to your TP-Link ID.

More TP-Link models

Source: TP-Link Official Support — Deco Setup Guideverified · medium confidence · updated 2026-09-07

FAQ

What is the default password for the TP-Link Deco M4?
The TP-Link Deco M4 has no web admin login — it's managed entirely from the manufacturer's mobile app.
What is the default login IP for the TP-Link Deco M4?
The TP-Link Deco M4 has no web admin login — it is managed entirely from the manufacturer's mobile app.
What is the default username for the TP-Link Deco M4?
The TP-Link Deco M4 has no web admin username — it is managed entirely from the manufacturer's mobile app.
How do I factory-reset the TP-Link Deco M4?
With a pin, depress Reset on the bottom of the node for about a second. The light flashes yellow while clearing, turns steady yellow while restarting, and pulses blue once defaults are restored. Setup then starts over inside the Deco app after you sign in to your TP-Link ID.

Verification history (56)

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. 2026-07-13First verified· app-only
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  2. 2026-07-14Re-verified, unchanged· app-only
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  3. 2026-07-14Re-verified, unchanged· app-only
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  4. 2026-07-15Re-verified, unchanged· app-only
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  5. 2026-07-20Re-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. 2026-07-27Re-verified, unchanged· app-only
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  15. 2026-07-27Re-verified, unchanged· app-only
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  16. 2026-07-28Re-verified, unchanged· app-only
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  17. 2026-07-28Re-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. 2026-07-29Re-verified, unchanged· app-only
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  22. 2026-07-29Re-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. 2026-07-30Re-verified, unchanged· app-only
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  27. 2026-07-30Re-verified, unchanged· app-only
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  28. 2026-07-31Re-verified, unchanged· app-only
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  29. 2026-08-02Re-verified, unchanged· app-only
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  30. 2026-08-04Re-verified, unchanged· app-only
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  31. 2026-08-04Re-verified, unchanged· app-only
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  32. 2026-08-07Re-verified, unchanged· app-only
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  33. 2026-08-08Re-verified, unchanged· app-only
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  34. 2026-08-09Re-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. 2026-08-10Re-verified, unchanged· app-only
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  40. 2026-08-10Re-verified, unchanged· app-only
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  41. 2026-08-12Re-verified, unchanged· app-only
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  42. 2026-08-12Re-verified, unchanged· app-only
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  43. 2026-08-16Re-verified, unchanged· app-only
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  44. 2026-08-17Re-verified, unchanged· app-only
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  45. 2026-08-17Re-verified, unchanged· app-only
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  46. 2026-08-17Re-verified, unchanged· app-only
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  47. 2026-08-24Re-verified, unchanged· app-only
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  48. 2026-08-24Re-verified, unchanged· app-only
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  49. 2026-08-27Re-verified, unchanged· app-only
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  50. 2026-08-31Re-verified, unchanged· app-only
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  51. 2026-08-31Re-verified, unchanged· app-only
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  52. 2026-09-04Re-verified, unchanged· app-only
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  53. 2026-09-04Re-verified, unchanged· app-only
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  54. 2026-09-06Re-verified, unchanged· app-only
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  55. 2026-09-06Re-verified, unchanged· app-only
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  56. 2026-09-07Re-verified, unchanged· app-only
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