What were you trying to do that didn't work?

Connecting to a RHEL machine from Windows machine using Xming is not working as intended. Customer is using discrete accounts on both RHEL and Windows.

But, multiple sessions are not being allowed.

How reproducible:

Frequently. 

Steps to reproduce

1. Login to Windows, Set up Xming, connect to RHEL machine for X11 session.
2. Perform step "1" with another user account on Windows.
3. X11 forwarding doesn't work from the second account, and the X11 forwarded application does not initialize for the user.

Expected results

The users should be able to individually access X11 applications simultaneously on the Windows machine using different user accounts and sessions on the RHEL machine. 

Actual results

Only one session is accepted and gets initialized when using Xming on windows even with different user accounts on both Windows and RHEL machine.