FRITZ!Box 5690 Pro — Error codes & fixes
Troubleshooting guide for the FRITZ!Box 5690 Pro. Diagnose an error code and find the fix.
DSL not responding
dsl-not-respondingThe router reports that the DSL connection is not responding, so there is no internet.
Source: AVM FRITZ!Box knowledge base
Confidence: 85%
Verified Aug 9, 2026
PPPoE error
pppoe-errorThe router cannot establish an internet connection due to a PPPoE authentication error.
Source: AVM FRITZ!Box knowledge base
Confidence: 85%
Verified Aug 9, 2026
Powerline adapter not working
powerline-not-workingThe powerline adapter does not establish a connection, often due to wiring or pairing issues.
Source: AVM FRITZ!Box knowledge base
Confidence: 80%
Verified Aug 9, 2026
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