Hello
There are a few things to consider here.
Is the spinning wheel happening on connection before NoMachine login
screen, after logging in, or is the connection established and then you see the
rotating icon?
Is anything happening on the problematic machine itself?
Usually, upon installation there should be a popup (if necessary) to handle access rights, maybe it was denied or revoked afterwards?
If we can’t establish that it’s a configuration issue, we would require logs.
Article on how to collect logs:
https://www.nomachine.com/DT10O00163 (“How to gather debug logs for support requests”)
After gathering logs, please send them to forum[at]nomachine[dot]com using the title of that forum’s thread as the mail’s subject.
We would need logs from the problematic target machine and nxplayer logs from the connection attempt (client side)
Also please check the system logs/journal for any errors/warnings or strange
entries considering loading of NoMachine services (localnxserver, nxserver, nxd).
/Mth