Hello,
Since the issue occurred after the ADDS role installed, it’s possible that group policy or user permissions are affecting RDS environments.
Here are some steps to troubleshoot and potentially resolve the problem:
If AD DS is causing issues, consider whether the configuration is affecting user access or group memberships. Users who should have access to RDS should be part of the appropriate groups and have the necessary permissions.
Are there any Active Directory Group Policy Objects (GPOs) that could be affecting RDS sessions?
Review the Group Policy settings, both at the domain level and on the RDS server itself. It's possible that a Group Policy setting is causing the issue. Check for any policies that might restrict or control RDS access.
Thanks,
Karlie