You may sometimes get error messages about outdated entries in the DNS cache, when you are using remote desktop. (The connection cannot be completed because the remote computer that was reached is not the one you specified. This could be caused by an outdated entry in the DNS cache. Try using the IP address of the computer instead of the name.)
The first thing you should do, is to make sure that the clock is correct on these nodes:
1: The client machine
2: The remote machine you are connecting to
3: And if used, the domain controller(s).
And of course, make sure that you don’t have any invalid dns cache. clear the dns cache by doing this in cmd: ipconfig /flushdns.
If it is still an issue, another work around can be found here: http://extremeengineers.net/?p=126 (although, you should fix the problem and not the symptom)