While trying to log in to the GP Web Client 2013 some of the users get the error "an unexpected error has occurred. press the sign-in button to reconnect to the application". The Corelation ID is 6555292c-8af7-4464-939c-6e54a4fbf5ba.
The services are all running and the only difference is that these users are in the same forest but in a different domain.
Even when using the same machine some users can login while other get this message. while all users when logging in to the GP desktop client can log in.
