Cannot connect to the requested display

Forum / NoMachine for Windows / Cannot connect to the requested display

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  • #2449

    I am getting the following error when trying to connect: nomachine the session negotiation failed. error: cannot connect to the requested display.

    I had everything working but then a new version of nomachine  was available so I updated and now can’t connect. I uninstalled and reinstalled the previous version and now that doesn’t work either.

    I have the nomachine server running on 1 windows 8 PC and running nomachine on another windows 8 PC trying to connect.

    I have it configured to use port 443 and my router has port 443 forwarded to the server.

    Both PC are on a LAN and in the same workgroup.

    Hoping someone may have some suggestions of things to try.
    Thanks 🙂


    Can you send us the logs? Check the instructions here:

    If they are not attachable here (because they are too big), send them to issues[at] Thanks!


    Getting same error

    going from win 7 x64 to server 2012 fails

    going from server 2012 ro win 7 x64 works

    attaching logs


    Trying renaming them


    Getting the exact same thing here from two situations:

    Fedora 20 x64 -> Win 7 x64

    Win 8 x64        -> the same Win 7 x64

    And in the Win 7 server logs, I can find those lines each time I’m trying to connect :

    2014-03-20 23:05:54 747.712 NXSERVER-4.1.29[2648] User ‘camino\pperron’ logged in from ‘’.

    2014-03-20 23:05:56 809.063 NXSERVER-4.1.29[2648] ERROR: Cannot connect to node.

    2014-03-20 23:05:56 810.560 NXSERVER-4.1.29[2648] ERROR: No available displays found.


    Can you all update to 4.2.15 which was released today. We can investigate on the latest version.

Viewing 6 posts - 1 through 6 (of 6 total)

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