Routers / AVM
AVM FRITZ!Box 6591 Cable
Default access and factory-reset steps, cited to the manufacturer.
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
- AVM FRITZ!Box 7590
- AVM FRITZ!Box 7590 AX
- AVM FRITZ!Box 7530
- AVM FRITZ!Box 7530 AX
- AVM FRITZ!Box 7490
- AVM FRITZ!Box 5590 Fiber
- AVM FRITZ!Box 6660 Cable
- AVM FRITZ!Box 4060
Source: AVM FRITZ! Knowledge Base — Opening/Determining the password for the FRITZ!Box user interface (FRITZ!Box 6591 Cable) (official)verified · medium confidence · updated 2026-07-20