A client is running 12 sessions on a 2012 remote desktop VM server from a local network. They are only using one application built on a SQL Server database. Server has 32GB ram, plenty of processor/hard disk. Network is on 1000Mb switch. All workstations are Windows 7. When using remote session, all users experience occasional delays in typing. You press the letters on the keyboard, then it takes a few seconds for them to fill in the form.
We asked one user to run the software on her local machine, using the network only for the SQL connection back to the server. She experienced no delay. This appears to be an issue with Remote Desktop traffic over the network. We tried to disable autotuning as well, with no luck.