Allow logon through Terminal Services in Windows Server Operating Systems
With Windows Server Operating Systems you should also check following items to set up RDP access:
1. Domain controller Security Policy (or local security policy if server is not in a domain) :
Here the Remote Desktop users group should be added to the marked element .
2. Administrative Tools -> Terminal Services Con figuration:
Here under Permissions you should add the Group "Remote Desktop Users"
3. gpedit.msc:
Here the marked element has to be set to "Not Con figured"!
