
Set Restrict Remote Desktop Services user to a single Remote Desktop Services session to Enabled. Open the start menu and type ‘gpedit.msc’ and open it. Double click Limit number of connections and set the RD Maximum Connections allowed to 999999. Set Restrict Remote Desktop Services user to a single Remote Desktop Services session to Disabled. Go to Computer Configuration > Administrative Templates > Windows Components > Remote Desktop Services > Remote Desktop Session Host > Connections. Open the start screen (press the Windows key) and type gpedit.msc and open it. Log into the server using Remote Desktop. This article describes the process for enabling and disabling multiple sessions.
If only one session is available and you take over another person’s live session, you may choose to enable multiple RDP sessions. How to Enable/Disable Multiple RDP Sessions in Windows 2012By default, Windows 2012 servers allow a single Remote Desktop session.