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AVM FRITZ!Box 6591 Cable default password & login IP

The AVM FRITZ!Box 6591 Cable ships with a unique password printed on the device label, not a shared default — log in at http://192.168.178.1.

For regaining access to a router you own or administer. If you didn't set it up, ask whoever did.
Login address
http://fritz.box
Gateway IP
192.168.178.1
Username
— none —
Password
— on the device label —

The password is unique to your unit and printed on a sticker on the router (often labelled Password or Access Key).

DOCSIS 3.1 cable modem router with FRITZ!Mesh support (as Master or Repeater) — distinct from the DSL/fibre FRITZ!Box models already covered. Login password is a unique per-device string printed on the type label on the bottom of the housing, not a shared default, per AVM's own knowledge base.

Factory reset

Press and hold the Reset button on the rear panel for about 5 seconds, or use System > Backup > Restore Factory Settings in the FRITZ!OS user interface.

More AVM models

Guides

Source: AVM FRITZ! Knowledge Base — Opening/Determining the password for the FRITZ!Box user interface (FRITZ!Box 6591 Cable) (official)verified · medium confidence · updated 2026-10-24

FAQ

What is the default password for the AVM FRITZ!Box 6591 Cable?
The AVM FRITZ!Box 6591 Cable ships with a unique password printed on the device label, not a shared default — log in at http://192.168.178.1.
What is the default login IP for the AVM FRITZ!Box 6591 Cable?
The AVM FRITZ!Box 6591 Cable default login IP is 192.168.178.1 — open http://192.168.178.1 in a browser on the router's own network.
How do I factory-reset the AVM FRITZ!Box 6591 Cable?
Press and hold the Reset button on the rear panel for about 5 seconds, or use System > Backup > Restore Factory Settings in the FRITZ!OS user interface.

Verification history (83)

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. 2026-07-20First verified· label-unique
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  2. 2026-07-27Re-verified, unchanged· label-unique
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  3. 2026-07-27Re-verified, unchanged· label-unique
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  4. 2026-07-27Re-verified, unchanged· label-unique
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  5. 2026-07-27Re-verified, unchanged· label-unique
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  6. 2026-07-27Re-verified, unchanged· label-unique
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  7. 2026-07-27Re-verified, unchanged· label-unique
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  8. 2026-07-27Re-verified, unchanged· label-unique
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  9. 2026-07-27Re-verified, unchanged· label-unique
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  10. 2026-07-27Re-verified, unchanged· label-unique
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  11. 2026-07-27Re-verified, unchanged· label-unique
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  12. 2026-07-28Re-verified, unchanged· label-unique
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  13. 2026-07-28Re-verified, unchanged· label-unique
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  14. 2026-07-29Re-verified, unchanged· label-unique
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  15. 2026-07-29Re-verified, unchanged· label-unique
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  16. 2026-07-29Re-verified, unchanged· label-unique
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  17. 2026-07-29Re-verified, unchanged· label-unique
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  18. 2026-07-29Re-verified, unchanged· label-unique
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  19. 2026-07-30Re-verified, unchanged· label-unique
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  20. 2026-07-30Re-verified, unchanged· label-unique
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  21. 2026-07-30Re-verified, unchanged· label-unique
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  22. 2026-07-30Re-verified, unchanged· label-unique
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  23. 2026-07-30Re-verified, unchanged· label-unique
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  24. 2026-07-31Re-verified, unchanged· label-unique
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  25. 2026-08-02Re-verified, unchanged· label-unique
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  26. 2026-08-04Re-verified, unchanged· label-unique
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  27. 2026-08-04Re-verified, unchanged· label-unique
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  28. 2026-08-07Re-verified, unchanged· label-unique
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  29. 2026-08-08Re-verified, unchanged· label-unique
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  30. 2026-08-09Re-verified, unchanged· label-unique
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  31. 2026-08-10Re-verified, unchanged· label-unique
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  32. 2026-08-10Re-verified, unchanged· label-unique
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  33. 2026-08-10Re-verified, unchanged· label-unique
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  34. 2026-08-10Re-verified, unchanged· label-unique
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  35. 2026-08-10Re-verified, unchanged· label-unique
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  36. 2026-08-10Re-verified, unchanged· label-unique
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  37. 2026-08-12Re-verified, unchanged· label-unique
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  38. 2026-08-12Re-verified, unchanged· label-unique
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  39. 2026-08-16Re-verified, unchanged· label-unique
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  40. 2026-08-17Re-verified, unchanged· label-unique
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  41. 2026-08-17Re-verified, unchanged· label-unique
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  42. 2026-08-17Re-verified, unchanged· label-unique
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  43. 2026-08-24Re-verified, unchanged· label-unique
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  44. 2026-08-24Re-verified, unchanged· label-unique
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  45. 2026-08-27Re-verified, unchanged· label-unique
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  46. 2026-08-31Re-verified, unchanged· label-unique
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  47. 2026-08-31Re-verified, unchanged· label-unique
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  48. 2026-09-04Re-verified, unchanged· label-unique
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  49. 2026-09-04Re-verified, unchanged· label-unique
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  50. 2026-09-06Re-verified, unchanged· label-unique
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  51. 2026-09-06Re-verified, unchanged· label-unique
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  52. 2026-09-07Re-verified, unchanged· label-unique
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  53. 2026-09-11Re-verified, unchanged· label-unique
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  54. 2026-09-11Re-verified, unchanged· label-unique
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  55. 2026-09-14Re-verified, unchanged· label-unique
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  56. 2026-09-14Re-verified, unchanged· label-unique
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  57. 2026-09-14Re-verified, unchanged· label-unique
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  58. 2026-09-21Re-verified, unchanged· label-unique
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  59. 2026-09-21Re-verified, unchanged· label-unique
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  60. 2026-09-21Re-verified, unchanged· label-unique
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  61. 2026-09-25Re-verified, unchanged· label-unique
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  62. 2026-09-28Re-verified, unchanged· label-unique
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  63. 2026-09-28Re-verified, unchanged· label-unique
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  64. 2026-09-28Re-verified, unchanged· label-unique
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  65. 2026-09-28Re-verified, unchanged· label-unique
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  66. 2026-09-30Re-verified, unchanged· label-unique
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  67. 2026-10-05Re-verified, unchanged· label-unique
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  68. 2026-10-05Re-verified, unchanged· label-unique
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  69. 2026-10-05Re-verified, unchanged· label-unique
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  70. 2026-10-05Re-verified, unchanged· label-unique
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  71. 2026-10-07Re-verified, unchanged· label-unique
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  72. 2026-10-12Re-verified, unchanged· label-unique
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  73. 2026-10-12Re-verified, unchanged· label-unique
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  74. 2026-10-16Re-verified, unchanged· label-unique
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  75. 2026-10-16Re-verified, unchanged· label-unique
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  76. 2026-10-17Re-verified, unchanged· label-unique
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  77. 2026-10-18Re-verified, unchanged· label-unique
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  78. 2026-10-19Re-verified, unchanged· label-unique
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  79. 2026-10-19Re-verified, unchanged· label-unique
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  80. 2026-10-20Re-verified, unchanged· label-unique
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  81. 2026-10-21Re-verified, unchanged· label-unique
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  82. 2026-10-23Re-verified, unchanged· label-unique
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  83. 2026-10-24Re-verified, unchanged· label-unique
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