I've recently started having a problem where users can no longer log into the RDS server. They get 'Access is denied'.
If I add them to Domain Admins, they are able to get on without issue. I've checked
Local Security Policy > Local Policies > User Rights Assignments > All log on through Remote Desktop Services. It has the appropriate groups assigned. I even added Domain Users to include everyone, but the users still get the access denied unless they are in the domain admins group.
I've checked the event log and the only 2 events associated with the security log are 2 4634 events that say An account was logged off. One with Logon Type 3 and the other with Logon Type 10.
Any ideas as to what could be casuing the issue?