Windows 2003 Terminal Server, my Licensing Server is on a differnent server which is a AD Controller, multiple clients use the RDP sever from mulitple sites. About 3 weeks ago one site was unable to connect. This particular remote site is not admistered by me, but another entity. but according to him nothing has changed on his end either. Scenario, they connect to my MS VPN server just fine, but when they try to use RDP to connect to our RDP server they get an error that pops-up (I have attached the screenshot for this). I cannot find anything in the event viewer on my licensing server nor my RDP server & the other gentleman has said that there are no events being recorded on the client PC's on his side that need this connection. I do show the PC's that have attempted to connect as having a temporary license issued to them via my licensing server... I can ping them via their assigned VPN address & I can even RDP into them... but they cannot RDP into my terminal server...
The gentleman on the remote end has also followed the instructions in the following two KB articles, cc756826 and cc775526, but there was no change.
Thanks in advance for the help!