Open tsadmin.msc mmc snap-in (Administrative tools > Remote Desktop Services > Remote desktop Session Host Configuration).
If Remote Desktop is enabled, next you should check the setting which determines the maximum number of simultaneous users’ connections to a Remote Desktop. Check the RDP Service Settings on the Remote Computer You can remotely enable Remote Desktop on a Windows computer by changing the fDenyTSConnections registry. If port 3389 is unavailable, you should check if the Remote Connection is enabled on the remote server (right-click on Start button > Settings > System > Remote Desktop > Enable Remote Desktop). PowerShell all versions: New-Object ).Connect(‘rdp_server_name1’, 3389) If this command returned True, then the RDP port responds on the server and it’s not blocked. Test-NetConnection rdp_server_name1 -Port 3389 -InformationLevel Quiet
