All normal users must be added to this list. All users with administrator access are automatically permitted to connect. While still at the RDP settings, check the allowed users by clicking the Select Users or by pressing S. You can find more information about Network Level Authentication at Microsoft’s TechNet. If your server was set to allow remote control with Network Level Authentication, make sure your own computer supports this or select to allow any connection. The Remote Desktop needs to allow connections from other computers for the feature to work. The easiest way to get to the option is to open sysdm.cpl by searching for it on the start menu. When you are logged in and the server seems to be working, but Remote Desktop still cannot connect, make sure a remote connection is allowed. If it does not react to commands you might have to restart your server. If the connection shows something other than the lock screen, try if the server seems responsive. Sign into your server with an account that has administrator privileges to continue troubleshooting. Once you’ve connected to your server, through either of the methods mentioned above, you should be greeted by Windows lock screen. Even while you might have trouble connecting using Windows Remote Desktop, you should always be able to log in to the web console at your UpCloud control panel, or by VNC connection, which settings are at your server details.

Teamviewer please check your connection