Having issues with two kb updates affecting remote desktop connection (RDP) to a terminal server (TS) farm.
Have found that RDP file version 6.3.9 which is updated through Microsofts Automatic Updates KB2592687 and KB2574819 will only connect to the connection broker. However if the user is being pushed by the connection broker to another TS server due to load balancing they get "Unable to establish connection" error.
The 3 servers in the farm are VM's running windows server 2008 R2 with load balancing.
If we uninstall the above mentioned KB updates bringing the RDP file version back down to 6.1.9 we don't seem to face any issues and connection is made immediately.
This however is not an option for all of our sites using RDP as we don't have admin access in order to remove and stop the above mention kb's from being re-installed.