FRITZ!Box 6430 Cable Service - Knowledge Base
FRITZ!Box 6430 Cable Service
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FRITZ!Fon reports "IPEI invalid!"
The registration of FRITZ!Fon fails. The error message "IPEI invalid!" is displayed on the telephone's display.
1 Restoring the telephone to its factory settings
- Press the "Menu" key on the telephone.
- Scroll to "Settings" and press "OK".
- "Reset" > "OK" > "OK"
2 Re-registering the telephone
- Register the telephone with the FRITZ!Box.