So we have a bit of an odd scenario.
We use Ubuntu thin clients running a RDP session to a 2008R2 server. We use various RDP clients, ie... Blaze, Reminna, RemoteDesktop to connect to the server. The Blaze is the best because it uses it's own RDP server side for compression.
The issue comes in when we want to RDP then FROM the 2008R2 server to another 2008R2 server offsite. The graphics just lag and the application we are running also hangs. To prove it is not their server, we did a simultaneous test from a Win7 box at the same time and we have no issues. So here is the two scenarios.
Ubunt--(Blaze or other)--> Win2008R2--(RDP)--> Win2008R2 Major hang
Windows 7--(RDP)--> Win2008R2--(RDP)--> Win2008R2 Works fine
Again, the application hangs and becomes unresponsive
Don't think this one is going to be easy.