Hi,
Works fine in NX Mobile (even using proxy)
I assume you mean the NoMachine app? And you confirm you can connect to the Windows server without problems. Are you able to ping the Linux host?
Client itself does not generate any logs
Did you select “Don’t delete log files on exit” (Settings -> Player -> Security) and then start the session? (more info here: https://knowledgebase.nomachine.com/DT11R00181#2)