FRITZ!Box 6690 — Error codes & fixes
Troubleshooting guide for the FRITZ!Box 6690. Diagnose an error code and find the fix.
No internet connection
no-internetThe router is up but devices have no internet, often from an ISP issue or a DNS problem.
Source: AVM FRITZ!Box knowledge base
Confidence: 80%
Verified Aug 9, 2026
Wi-Fi keeps dropping
wifi-dropThe laptop disconnects from Wi-Fi repeatedly, often from a driver issue or power saving.
Source: AVM FRITZ!Box knowledge base
Confidence: 80%
Verified Aug 9, 2026
Repeater not connecting
repeater-not-connectingThe Wi-Fi repeater cannot connect to the main router.
Source: AVM FRITZ!Box knowledge base
Confidence: 80%
Verified Aug 9, 2026
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