0
Server 2012 çoklu uzak masaüstü / Restrict each user to a single session on Server 2012
Open run and type “gpedit.msc” for Local Group Policy. Go to:
Computer Configuration\Administrative Templates\Windows Components\Remote Desktop Services\Remote Desktop Session Host\Connections
Simply disable “Remote Desktop Services users to single remote desktop session” option.
After that you will be able to connect your server with 2 different session.