Now that version 9 is out, it makes sense for you to update to that and provide feedback. The forums are for problems on the latest version. Problems with NoMachine 8, which is still of course supported, can be investigated through a support ticket. So, please let us know if you are both still able to reproduce this problem of “service stops running” on the latest release. If you can please, submit the logs. We have new instructions and a much easier way to get the logs with NoMachine 9. Please see the steps here: https://kb.nomachine.com/DT08U00298#1. The server logs will provide all logs that we need.