Hi, we will need:
1. Compressed var/log directory from server’s side (on Windows standard path should be C:\ProgramData\NoMachine\var\log
2. Confirmation of whether you have a password set (if it’s not a password-less account)
3. Did you reboot of the server machine after installing NoMachine.
4. Are there other user accounts on the server machine – can you successfully log in on them via NoMachine?
For logs, see the following article: https://www.nomachine.com/AR07K00677