Go into the 'Administrative Tools" folder of the Term. Server, double click on "Terminal Services Configuration" icon. Now, highlight "connections" on the left, then right click on the RDP connection that you want to configure on the right. Right click the RDP connection...go down to properties. On the pop up window, click the "Sessions" tab....now look down just a bit and put a check mark in the "Override user settings" check box. Go down to where it says "Idle session limit" and select your timeout preference from the drop down list, and click O.K. to close the window. The new setting will not affect any currently active session....just new connections. The currently connected users will get the new settings the next time that they log in.