Unable to connect to Windows from Mac

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    I’m using NoMachine version 6.9.2 on home computer running Mac OS version 10.14.6. I’m trying to connect to my office laptop running Windows 10 with NoMachine version 6.9.2. I’ve Cisco AnyConnect Secure Mobility Client running on both  Mac OS and Windows 10 to connect to my office VPN.

    NoMachine on Windows computer is in running status and one of the IPs listed in 10.194.71. I’ve tried connecting to this IP from NoMachine on Mac and it is not working. There are 2 IPs listed  and I tried connecting to both and does not work. It times out saying:

    “A connection timeout has occurred while trying to connect to ‘’ on port ‘4000’. The issue could either be caused by a networking problem, by a firewall or NAT blocking incoming traffic or by a wrong server address. Please verify your configuration and try again.”

    Please provide suggestions to fix it.






    The logs you provided suggests there is something wrong with the IP address or port you are trying to connect to.

    When you say “There are 2 IPs listed” do you mean the addresses provided by the player application from “My machines” view?

    Since you are using vpn there is always a possibility that NoMachine did not list every network interface and the valid IP is simply not there. Could you ascertain which IP is proper for the target machine and use the “add new connection” in the player application to provide the valid address?

    If the connection still does not work like that, please check if there is nothing blocking the 4000 port on the target machine. You can also try to change the protocol used during the connection from the NX to SSH (from connection details menu) this will also change port used to connect to
    22 (if you are connecting to linux/osx) or 4022 (for connections to Windows).

    Also on the target machine please check if the nxd process is running and also for any errors/warnings in the NoMachine logs. Most likely place would be nxd.log and nxserver.log.


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