Are there any crash reports of nxnode in: /Library/Logs/DiagnosticReports/ ?
Can you send us the log files? (issues[at]nomachine.com)
# tar zcf logs1.tar.gz /Library/Application\ Support/NoMachine/var/log/
# tar zcf logs2.tar.gz /Users/
We also need some additional information:
– NoMachine product and version on local computer
– local Windows/Mac/Linux version (Windows XP/7/8, OS X 10.x, Ubuntu xyz, Mint x.y, etc.)