Strange RDP / Remote Desktop problem

Posted by John Landheer on Server Fault See other posts from Server Fault or by John Landheer
Published on 2010-05-27T09:17:50Z Indexed on 2010/05/27 9:22 UTC
Read the original article Hit count: 211

Filed under:

remote-desktop

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windows-server-2008-r2

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rdp

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mstsc

I'll try to be as specific as I can be:

Server is running SBS 2008 R2 (with all updates)
Server is connected to the internet
Server has 2 NIC's, one is disabled
Server is running RDP Service (accessible directly from the internet, I know, not as secure as it should be)
Computers A and B are on the same local net.
Computers A and B are both Windows 7.
Users X and Y are both admins on the server
Computer A can connect as user X to the server with mstsc
Computer A can connect as user Y to the server with mstsc
Computer B can connect as user X to the server with mstsc
computer B CANNOT connect as user Y to the server with mstsc!

The last point is the problem, I get an authentication error. This used to work flawlessly for the last year. The server and desktops have been rebooted.

I find it very strange....

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