Hi Peter,
I agree with you. This is an issue from the client side (not from the SAP Server Side).
Kerberos authentication is working fine with other systems.
So there is an issue with my AD configuration.
Do I need to declare the service provider SPN (<sp alias>.domain.com) under the user SAPServiceSSPRA? Because it is used by the old SAPServiceSSP.
Thx and regards,
Mehdi.