DescriptionThis article explains how to process when users are unable to connect to the server via RDP through SSL VPN web portal .SolutionWhen users are connected via SSL VPN through web portal and they process the below actions, they will get 'connect closed' error.
If they select the quick connection and click
the RDP and specify the server IP address and click launch with default
security menu "standard RDP encryption security".
Select the security menu with Network level authentication as shown in the below image and then click launch, it will be prompted for server login and after entering the credentials it will able to connect to the server via RDP successfully.