Tagged: Remote Connection
August 19, 2021 at 18:34 #34914
I’ve been trying to connect to my desktop (Ubuntu 21.04) from a remote location using NoMachine unfortunately to no avail.
Connecting while my laptop (Ubuntu 21.04) and desktop are on the same network is not an issue.
To connect I tried the third listed IP address from the available options (NX protocol) while using the port as instructed in the NoMachine instructions. The error message I get states that it refused to establish a network connection on the port. Please verify that NoMachine is correctly installed and listening on the port where you are trying to connect, and that incoming traffic is not being blocked by a firewall or NAT.
I did check my router settings, and also added a forwarding port setting my local IP-address of my desktop and the specified port. UPNP is enabled on my router.
I have no idea how to check whether incoming traffic is blocked by a firewall or NAT.
Any help would be greatly appreciated!August 20, 2021 at 10:01 #34924
It looks like this topic dealt with a similar case: https://forums.nomachine.com/topic/cant-connect-from-outside-of-network
Please take a look at it and let us know it helps. 😉August 20, 2021 at 16:11 #34933
Thank you for your reply.
I already tried port forwarding and used the same strategy as written in the post you mentioned, which did not resolve the issue for me. Also, my IP address is static and does appear the same across different websites and the application.August 20, 2021 at 17:01 #34936
Can you check if the external IP in NoMachine is the same as on this page https://www.whatismyip.com/ ? If it’s the case then it should work.
If it doesn’t work, please check the rules for your router’s firewall.
If the IP is a different one, it can mean that you have a double NAT router.
It would also be helpful if you could check the port forwarding of some different services like SSH.August 23, 2021 at 08:09 #34939
The IP address listed is the same as the address listed on that website.
Which settings in the firewall should be adjusted?
StijnAugust 23, 2021 at 10:11 #34954
Are you sure that you are connecting to the correct IP and Port?
Please execute this command
sudo /etc/NX/nxserver --upnpstatuson the sever side and connect to IP and Port which are listed in the line starting with: NX port 4000 mapped to:
If the problem appears please enable debug, restart nxserver (
sudo /etc/NX/nxserver --restart) and execute the commands below:
sudo /etc/NX/nxserver –upnpstatus sudo /etc/NX/nxserver –upnpmap
Send the logs to forum[at]nomachine[dot]com, making sure you add the title of the topic in your email subject.
In this article, you can find more instructions on how to enable and collect debug logs automatically: https://www.nomachine.com/DT10O00162.
Can you also tell us your router model?August 29, 2021 at 19:41 #35015
I forwarded the generated logs.
I tried connecting to it and also changing the port, but yes both the IP and Port are those as listed in the –upnpstatus command.
Router model is the one that was provided with my internet contract: https://fizz.ca/en/wi-fi-technologies, which has model name CODA-4680.
Thank you for your help,
StijnAugust 31, 2021 at 09:00 #35031
Here you can find instructions for your router: https://portforward.com/hitron-technologies/coda-4589-res/
We could not find anything in the logs and we could not see the connection attempt, which indicates a firewall configuration problem.
Did you use the same port in port forwarding as UPnP? (UPnP port you can check in the player welcome screen on with
Can you send us screenshots from the router port forwarding setup? Please send them via email to forum[at]nomachine[dot]com adding the title of the topic as the email subject. Thanks!
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