Hello!
After upgrading to vCenter 5.1 i admins from child domain cannot login.
Error msg is unknown user or password. (user and passwords are correct)
When i add permission i also only find 1 AD Domain (the root domain).
In this Domain Scope also users and groups from all child domains are listet.
I can permit them, but it has no effect logging in.
IT also don't detects the default domain.
Before i could login with %username%. Now it works only with DOMAIN\%username%
If i type CHILDDOMAIN\%username% authentication fails (user/password combination does not work)