The attached is the error i am getting when i am trying to accessing remote server from a different site, i have many servers i am able to access but for some reason this one all of a sudden stop being accessed. I have changed public ip and still no avail. I am able to access via LAN but not WAN. I have tried another machine with the same setting in my firewall rules and able to access. Any ideas guys.
Windows 2003 Server with Terminal Server group Licence.