Dirk's Tech Findings

Zoiper SIP Client cannot connect to Fritzbox

Publication date: 2019-07-24

Issue: Zoiper SIP Client cannot connect to Fritzbox router

Zoiper SIP-Client always yields "Anmeldung nicht erfolgreich" when trying to connect to a Fritzbox router.

Solution: Avoid unsupported characters in password

The password contained a ".". Once I replaced this character by "-", connecting was successful.

Hint towards the solution

"Vermeiden Sie Umlaute und Sonderzeichen im Benutzername. Nehmen Sie nur A-Z , a-z, 0-9 sowie Bindestrich und Unterstrich." (https://www.pks-team.de/aenderung-bei-fritz-os-6-83.html)

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