I have 3 computers running windows 8, (A1, A2, A3) all set up the same.
I am running an adtran firewall with vpn and netextender. I can remote desktop into each computer in the office. From the outside, I tested each computer and could connect. Then I set up the users to access their computers from home. Some times they work, sometimes not. When they fail a connection, the message is almost instant. REMOTE DESKTOP can't connect to the remote computer for one of the reasons, 1 Remote access to the server is not enabled 2) The remote computer is turned off 3) The remote computer is not available on the network.
At this point, I go to a different computer, like my wife's computer, turn on net extender and remote desktop into the computer that failed connection.
The VPN is working, and net extender is working because I am able to establish a connection to the remote network. The computers are working because I can log into them from different external computers. Once a connection fails on a computer, it will never connect. Sometimes, removing the user name on the remote desktop connection program option will allow me to log on. I have windows 8 on the wife's laptop, windows 7 on my home desktop, and windows 8 on the internal computers. The main server is 2012.
Any ideas why Remote Desktop will not accept a connection, when it previously has?