Connection suddenly failed for user

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  • #39432
    doubled
    Participant

    The connection has been always working, and it was working yesterday as well but suddenly it no longer work anymore.

    The connection is from Windows 10 to Linux Mint 19.1, and the server status says its Running, the port is set to 4000.

    Here’s the log I saw

    Info: Starting NoMachine version 7.10.2.
    Info: Loading settings from ‘C:\Users\PC\.nx\config\player.cfg’.
    Info: Loaded translation files for ‘English’.
    12336 5272 09:55:45 796.729 Main: Creating the client session.
    12336 5272 09:55:45 797.724 ClientSession: Initializing session at 0x0194da58.
    12336 5272 09:55:45 944.299 ClientSession: Initialized session at 0x0194da58.
    12336 5272 09:55:45 950.257 ClientSession: Starting session at 0x0194da58.
    12336 5272 09:55:45 957.248 ClientSession: Going to start session ‘C:\Users\PC\OneDrive\Documents\NoMachine\doubled-P910.nxs’.
    12336 5272 09:55:45 979.180 ClientThread: Creating new thread.
    12336 5272 09:55:45 986.161 Connection: Initializing connection at 0x05025d30.
    12336 5272 09:55:45 992.150 Connection: Initialized connection at 0x05025d30.
    12336 5272 09:55:45 992.150 Connection: Starting connection at 0x05025d30.
    12336 5272 09:55:45 992.150 ClientDaemonConnector: Starting a new connection to host ‘xxx.xx.xxx.xx’ on port ‘4000’.
    12336 5272 09:55:45 995.216 Connection: Started connection at 0x05025d30.
    12336 5272 09:55:46 005.111 ClientSession: Started session at 0x0194da58.
    Info: Slave server running with pid 7252.
    Info: Listening to slave connections on port 25098.
    12336 5272 09:55:46 016.082 Main: Entering the GUI event loop.
    12336 12820 09:55:49 745.766 ClientUpnp: WARNING! Mapping of port ‘4780’ failed after ‘3795’ ms.
    12336 12820 09:55:53 533.341 ClientUpnp: WARNING! Mapping of port ‘4780’ failed after ‘3788’ ms.
    12336 5272 09:56:16 006.256 Connection: Connection at 0x05025d30 failed.
    12336 5272 09:56:16 006.256 ClientSession: Runnable at 0x05025d30 caused the session at 0x0194da58 to fail.
    12336 5272 09:56:16 006.256 ClientSession: Failing reason is ‘A connection timeout has occurred while trying to connect to ‘xxx.xx.xxx.xx’ 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.’.
    12336 5272 09:56:16 014.236 ClientSession: Stopping session at 0x0194da58.
    Info: Slave server running with pid 12152.
    Info: Listening to slave connections on port 38979.
    12336 5272 09:56:16 035.038 Connection: Stopping connection at 0x05025d30.
    12336 5272 09:56:16 035.038 ClientDaemonConnector: Stopping the current connection.
    12336 5272 09:56:16 035.038 Connection: Stopped connection at 0x05025d30.
    12336 5272 09:56:16 055.802 ClientSession: Stopped session at 0x0194da58.

    Since the connection was suddenly not working and there’s no any upgrade with the firewall at that time.

    Thank you for the help.

    #39489
    Britgirl
    Keymaster

    12336 5272 09:56:16 006.256 ClientSession: Failing reason is ‘A connection timeout has occurred while trying to connect to ‘xxx.xx.xxx.xx’ 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.’.

     

    You said it was working until the other day. Could something have changed on the server side? E.g could the IP address have changed?

    #39494
    doubled
    Participant

    HI Britgirl thank you for your reply.
    It was working in the morning & early afternoon and suddenly stopped working.
    Currently I am using another tool to connect to the remote Linux system.
    Since I have access so I am able to verify the IP address on the server side.
    Everything looks the same.

    The remote server also have 4000 running fine

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