Customer report that RDP connections are freezing. Customer says that the only things that has changed are Microsoft Updates and webnetwork updates. 

Customer noticed the following in the java console: 
Exception in ToClientThread.run: java.net.SocketException: Connection reset

The Java console error message means that something told webnetwork to reset the connection. 

Customer found resolution: 
From Customer: 
We use 8e6 content filters on our network to filter web content for the district. Two weeks ago an update was applied to the filters which targeted SSL traffic . IF the content filters decide they don’t like the target site or in the case of SSL, they can’t make a determination. They issue a reset to the client. This was causing havoc for our Terminal Server VPN’s.