Active Directory groups are added as security profile with a set of class permissions. But user belonging to this AD group has not the class permissions set.
For example when trying to open DSM GUI, the login dialog box appears even if we are logged with a user belonging to a AD group which has full rights in ITCM.
There is same problem with RC permissions, User has no permission to take control of machines even if he belongs to a AD group with RC permissions
All Client Automation versions
This problem occurs if there are 2 or more AD Domains and AD group are Local Domain group.
The scope of AD Local Group is only the AD Domain where it is created and it is not seen outside the AD Domain