Authentication problem TR-064 Fritzbox

When i updated from the version Openhab 3.0.2 to 3.1.0 the binding is not working.
The configuration parameters are ok (ip, username dslf-config, password) but i get the message:
Thing ‘tr064:fritzbox:Fritzbox7590’ changed from UNKNOWN to OFFLINE (COMMUNICATION_ERROR): com.sun.xml.messaging.saaj.SOAPExceptionImpl: Unable to create envelope from given source:

Thing ‘tr064:fritzbox:Fritzbox7590’ changed from OFFLINE (COMMUNICATION_ERROR): HTTP-Response-Code 500 (Internal Server Error), SOAP-Fault: 401 () to UNKNOWN

Any idea how to solve the problem? Thanks in advance.

Maybe the Fritzbox was updated? For me the login has changed with firmware 7.27 and is no longer called admin.

The Fritzbox has the version 07.27, i never used admin for login with TR064, i used the default login dslf-config and my password for login.

I think this is no longer possible. Try adding a user, set a a password and allow app access for that user.

I tried creating a new username and giving permisions but still not working
SAAJ0511: Unable to create envelope from given source

Enable TRACE logging, show what is sent and received.

@wolf did you solve the issue? I’m urrently facing the same issue on a newly installed Openhab v3.1.0

Enable TRACE logging, show what is sent and received.

I ran now an update of Fritz OS to the latest version and now it works. I thought the update was already done before