When tryin to add a new server to a current shared configuration, i get a "Failed to Connect to Service Configuration Server", Username or Password wrong.
I checked the password, it's correct and i can log on with that account and also the service is running in that context on the server i want to join the shared configuration.
The servers are in the same network and no windows firewall is running.
I also tried it with domain\username and username@domain, both with the same error.

Any ideas on that?