Connection timeout when trying to connect

[erans]

Hello,

I am having problems connecting from my home Windows computer to an Ubuntu computer at my university. After connecting a few times with no problems, I then come to connect again and get a connection timeout error:

A connection timeout has occurred while trying to connect to ‘132.68.58.21’ 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.

This is a recurring problem. Sometimes restarting the host computer solves the problem, but then after some time, it happens again.

The logs I get (on the client side):
Info: Starting NoMachine version 7.1.3.
Info: Loading settings from 'C:\Users\erans\.nx\config\player.cfg'.
Info: Loaded translation files for 'English'.
10836 9628 11:56:51 033.844 Main: Creating the client session.
10836 9628 11:56:51 033.844 ClientSession: Initializing session at 0x014fe0d0.
10836 9628 11:56:51 157.781 ClientSession: Initialized session at 0x014fe0d0.
10836 9628 11:56:51 157.781 ClientSession: Starting session at 0x014fe0d0.
10836 9628 11:56:51 157.781 ClientSession: Going to start session 'C:\Users\erans\Documents\NoMachine\Connection to 132.68.58.21.nxs'.
10836 9628 11:56:51 173.405 ClientThread: Creating new thread.
10836 9628 11:56:51 189.028 Connection: Initializing connection at 0x04e955a8.
10836 9628 11:56:51 189.028 Connection: Initialized connection at 0x04e955a8.
10836 9628 11:56:51 189.028 Connection: Starting connection at 0x04e955a8.
10836 9628 11:56:51 189.028 ClientDaemonConnector: Starting a new connection to host '132.68.58.21' on port '4000'.
10836 9628 11:56:51 189.028 Connection: Started connection at 0x04e955a8.
10836 9628 11:56:51 189.028 ClientSession: Started session at 0x014fe0d0.
Info: Slave server running with pid 8856.
Info: Listening to slave connections on port 26874.
10836 9628 11:56:51 204.653 Main: Entering the GUI event loop.
Info: Connection to 132.68.58.21 port 4000 started at 11:56:51 220.276.
10836 3272 11:57:51 235.739 DaemonClient/DaemonClient: WARNING! Shutting down with startup timeout.
10836 10488 11:57:51 235.739 DaemonClientApplication/DaemonClientApplication: WARNING! Session terminated abnormally.
10836 10488 11:57:51 235.739 DaemonClientApplication/DaemonClientApplication: WARNING! Error is 138, 'Connection timed out'.
Warning: Connection to 132.68.58.21 port 4000 failed at 11:57:51 235.739.
Warning: Error is 138, 'Connection timed out'.
10836 9628 11:57:51 235.739 Connection: Connection at 0x04e955a8 failed.
10836 9628 11:57:51 235.739 ClientSession: Runnable at 0x04e955a8 caused the session at 0x014fe0d0 to fail.
10836 9628 11:57:51 235.739 ClientSession: Failing reason is 'A connection timeout has occurred while trying to connect to '132.68.58.21' 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.'.
10836 9628 11:57:51 266.977 ClientSession: Stopping session at 0x014fe0d0.
Info: Slave server running with pid 10508.
Info: Listening to slave connections on port 20173.
10836 9628 11:57:51 282.597 Connection: Stopping connection at 0x04e955a8.
10836 9628 11:57:51 282.597 ClientDaemonConnector: Stopping the current connection.
10836 9628 11:57:51 282.597 Connection: Stopped connection at 0x04e955a8.
10836 9628 11:57:51 313.843 ClientSession: Stopped session at 0x014fe0d0.

[Carin]

Hi erans,

Can you also send us logs from the server-side, please?
You can see the following article for guidance: Collect server and client logs manually
Please send as an attachment to forum[at]nomachine[dot]com making sure you use the title of the topic in the subject of your email. Thanks!

[Britgirl]

Erans, can you tell us which university’s facilities you are connecting to and have you asked your administrator for further assistance if this is a set-up arranged for your faculty?

[Author]

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