All Access Methods cannot be launched

Document ID : KB000099247
Last Modified Date : 01/06/2018
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Issue:
PAM Servers are upgraded to v3.1.1
PAM Client/Browser is launched on Windows Server 2012 R2.
At the Access Page, all access methods are not launched and no exception is displayed on screen.
Environment:
PAM 3.1.1
PAM Client on Windows Server 2012 R2
Cause:
Windows Server 2012 R2 had Remote Access Service enabled which listens on TCP 3389 port (to be more specific, TCP/0.0.0.0:3389).
PAM Client also listen on the same port (to be more specific, TCP/127.0.0.100:3389) and would conflict with Remote Access Service port.
Due to this port conflict, PAM Client's Access Methods did not initialize correctly impacting all Access Methods(RDP/SSH/VNC...)
 
Resolution:
Port conflict need to be resolved.
As a workaround, Windows Server's Remote Access Service port can be changed.
Additional Information:
https://support.microsoft.com/en-us/help/306759/how-to-change-the-listening-port-for-remote-desktop
https://social.technet.microsoft.com/wiki/contents/articles/10972.changing-the-default-port-of-rd-gateway-in-windows-server-2012.aspx