I have a system composed with few windows servers 2003 R2, one is built as the domain controller another one as a web server. I tried to remotely log on the domain controller with a wyse thin client (linux v6) using rdp. On the domain controller, I already allowed the remote desktop, enter the Domain Admin group, which an admin user is part of it, as a member of the Remote Desktop Group Users and also grant the “Remote Desktop Group Users” the right “allow to remotely log on by terminal services” at the locally level (Computer Configuration\Windows Settings\Security Settings\Local Policies\User Rights Assignment) as well as under the Domain-Controller group policy -> Computer Configuration,->Administrative Templates, ->Windows Components->Terminal Services, “enabled” Allow users to connect remotely using Terminal Services setting. The Terminal Service is up when system is on.
In the wyse side, I used the rdp add-on to connect with server address of domain controller and login with the admin username and password, however without domain name. when log on by admin user , I got
To log on to this remote computer, you must be granted the Allow log on through Terminal Services right. By default, members of the Remote Desktop Users group have this right. If you are not a member of the Remote Desktop Users group or another group that has this right, or if the Remote Desktop Users group does not have this right, you must be granted the right manually.
I also increase the number limit to connect more than 4 in group policy setting.
So I exhausted all reasons why my wyse failed to log. On the hand, my wyse used the same rdp add-on to log on the web server without any error (with same setting of local polices\user Right)