Error when creating a new virtual desktop

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    I use NoMachine on my personal Windows laptop to remote connect to a Linux server. Before everything is normal. Today I find it is a little slow so I remove the connection and wanted to create a new connection. everything goes well, but when I click on “Create a new virtual desktop”, then it fails and give a error message like this: “The session negotiation failed. Error: last operation failed”. The logs are attached.

    Is it caused by that I remove the former connection forcefully? is there any solutions for that? thanks a lot.




    Hello Albert,

    problem appear on server side, so logs from server host will be more helpful. You can locate them at /usr/NX/var/log/ directory as nxserver.log and nxerror.log

    You should enable debug in node and server configurations files first.
    Those files are available at: /usr/NX/etc directory and its filenames are: server.cfg and node.cfg.
    Please set SessionLogLevel key to value 7 and uncomment it. Check the following article here for more details:

    After enable debug please restart nxserver (sudo /etc/NX/nxserver –restart), reproduce problem and send to us logs at forum[at]nomachine[dot]com.

    You can archive whole logs directory using: sudo tar -zcvf nomachineLog.tar.gz /usr/NX/var/log

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