Could not connect to the server. Error is 138: Connection timed out

[chaozhong.qin]

Hi everyone,

Now, I am struggling with a strange NoMachine connection problem.

The story is as follows. I have a workstation with Ubuntu system in my university, and a laptop with Win7 system at hands. I have installed NoMachine 4 server in the workstation, and NoMachine 4 client in the laptop.

Inside the university, I can successfully connect to the workstation from the laptop. But, now I’d like to connect to the workstation at home (external internet). So, first, I connected the university VPN from my laptop. Then, I opened a new session in NoMachine 4 client as usual. Unfortunately, I could not connect to the workstation in the university any more, and always got the error message ‘Could not connect to the server. Error is 138: Connection timed out’. 🙁

So, anyone faced the same problem before? Would you please help my out? Thank you very much in advance!

Best regards, Max

[Britgirl]

Please try the advice here first: https://www.nomachine.com/forums/forums/topic/cannot-connect-to-server

[chaozhong.qin]

Thanks a lot.

I checked that post. I also turned off all firewalls in the workstation. But, I still obtain the same error.

The detailed log message is as follows:

…………………………………………………………………………………………….

Error is 138: Connection timed out’.

924 6904 14:55:18 573.018 ClientSession: Destroying view at 0x4b8a768.

924 6904 14:55:18 573.018 ConnectedDevices: Cleaning services.

924 6904 14:55:18 593.019 ClientSession: Stopping session at 0x8f78c0.

924 6904 14:55:18 593.019 ClientSession: Change state to ‘Stopping’.

924 6904 14:55:18 615.020 Connection: Stopping connection at 0x3fbeea0.

924 6904 14:55:18 615.020 ClientDaemonConnector: Stopping the current connection.

924 6904 14:55:18 615.020 Connection: Disabling interactive session.

924 6904 14:55:18 616.020 Connection: Stopped connection at 0x3fbeea0.

924 6904 14:55:18 616.020 ClientSession: Going to kill all children.

924 6904 14:55:18 697.025 ClientSession: Change state to ‘Stopped’.

924 6904 14:55:18 697.025 ClientSession: Stopped session at 0x8f78c0.

………………………………………………………………………………………………………………..

Anyone has a clue on it?

Best regards, Chaozhong

[Britgirl]

It could be the VPN blocking you. Tell your VPN administrator that you need to connect from your machine to port 4000 on the server (your Workstation).

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