Hello,
I just tried to connect to your portal server and I notice that you are using 4.0.346 .
You can’t see the available sessions list because there was a bug on that version.
Please update to latest available version:
https://www.nomachine.com/download-enterprise
Additionally please correct:
ConnectionMethod NX http
to
ConnectionMethod NX
You can now remove the temoporary account you just created for test 🙂