Cannot connect to NX server on my LAN

[foryayfan]

I have 3 computers on my LAN (C1, C2, C3). All computers running Windows 10. All computers using the same version of NoMachine (6.6.8). NoMachine is installed on all 3 computers.

C1 can establish an nx session with C2 and C3. C2 can connect with C3 and vice versa.

However C2 and C3 cannot establish an nx session with C1.

When attempting to establish an nx session with C1 from C2 or C3 I get the error message: Error is 108: Connection reset by peer

 

Looking at the log file (attached) the problem seems to be here:

25832 26064 09:35:53 367.742 ClientUpnp: WARNING! Mapping of port ‘4419’ failed after ‘6809’ ms.

25832 17572 09:35:53 756.689 DaemonGreeter/DaemonGreeter: WARNING! Read from FD#1344 failed.

25832 17572 09:35:53 756.689 DaemonGreeter/DaemonGreeter: WARNING! Error 108, ‘Connection reset by peer’.

 

Note that I do have UPnP disabled on my router for security.

It is my understanding that UPnP only needs to be enabled to access NoMachine from outside my LAN. I am only interested in establishing a connection from within my LAN.

Please advise on how to troubleshoot this issue.

[Britgirl]

Hi, if you send us the logs of the C1 machine, we can take a look to see why you can’t connect to that computer. To extract the full logs, please follow the instructions for the affected PC here: https://www.nomachine.com/AR10K00697

Send attachments directly to forum[at]nomachine[dot]com making sure to reference your topic. Thanks!

[Britgirl]

Logs received thanks (both times 😉 )

[Britgirl]

Hi, the logs were not complete and were also missing the affected session.

Please follow the steps in the document here on how to extract complete logs: https://www.nomachine.com/DT10O00163.

[Author]

Posts