If the server is an AD and a TS it is not supported.
ADs should have very limited roles and applications running.
From
http://technet.microsoft.com/en-us/libr ... 4863(WS.10).aspx
Plan to install Terminal Server on a standalone server, not on a domain controller. When installed on a domain controller, Terminal Server performance is affected because of the additional memory, network traffic, and processor time required to perform the tasks of a domain controller in a domain.
As a quick test might be bypassing the firewall completely like :
Code:
c:\>netsh advfirewall set allprofiles state off
Switch is back on once you confirm then set the incoming ules for the right profiles.
If you have an antivirus solution this could be the limiting factor too.
De-activating might not always do the trick. More often than not you might need to uninstall.
Since this is a VM make sure you NAT and connectivity is working well.
Hope this helps.