I'm unable to remote desktop to my forefront TMG server running on server 2008 enterprise R2. Initially when I setup this server I was able to remote desktop to it. Though after a while remote desktop didn't work.
Allow connections only from computers running remote desktop with network level authentication is turned on. To get around this problem I had changed the port in the registry from 3389 to 3390 and this allowed me to connect. After restarting the server however I am no longer able to access it via remote desktop.
Any ideas how to fix this? I've tried adding rules in forefront to allow rdp to the server but this has made no difference.