I have been working on remote desktop connection for GNOME based desktop. However, everytime i tried to install the xRDP, it failed. It not only includes the Ubuntu (18.04, 16.04 and 14.04), CentOS (6/7) and Fedora (28). Although, I was able to connect the remote desktop connection via LXDE and x2go Client.
Edited-1: Signs and symptoms: The xvnc option screen pops up for credentials. Credentials are entered. Then, xvnc window opens which states that I got connected. It closes and there is grey screen and 'X' mouse cursor. The RDP connection closes and Microsoft window opens where I entered the IP for linux machine. Apologizes for ambiguity.