Sporadic Port Issue

[Will]

I know there's quite a few posts about port issues, but none of them seem to match my issue. I keep getting a port issue that I believe I have isolated down to the application itself. I currently using Deluge 2.2.0 on Fedora 43.

The port issue is recurring, checking the port using www.yougetsignal.com shows it is closed. I found that sometimes if I close the GUI then stop the deluge service and wait for a bit, then start it again it might fix the issue. Sometimes it seems to get resolved on it's own. Restarting my computer will often fix the issue but it will always come back, usually in less than 20 minutes. I've checked and double checked my port forwarding settings in my opnsense firewall and the firewall application on my computer and it's working fine. It doesn't look like my ISP is using CGNAT either, my external IP I'm getting from my modem isn't in the CGNAT range and matches whatsmyip.com. I've also tried other ports, but the issue always returns. I have also tried using the Transmission client using the same port, and it seems to work fine, no port issues.

It has been happening for a long time, I couldn't tell you when exactly it became this problematic, but the issue was present in 2.1.1 and the update to 2.2.0 didn't fix the issue. I'm running Fedora 43, these are the only 2 versions available so not sure if I can test an older version.

As a way to test my port forwarding and firewall settings, I closed the GUI and stopped the service when the port issue was occuring. I made sure the service was not running in the background, and I made sure port 65123 (the port I'm currently using) is not being used by any other process.

I then ran:

Code: Select all

nc -lk 65123

on my computer to listen to any incoming requests on port 65123, and then used www.yougetsignal.com to test it and it says the port is open. So firewall is not an issue and the port forwarding works as expected. This test always works, I've never had it fail. I have left this runninig for 20+ minutes as well and it still works as expected.

If I then launch Deluge and try again, it says the port is closed and Deluge shows a port issue again. So I don't know why it's reporting an issue with the port, but it seems to be the app having an issue and possibly not an issue with port forwarding, firewall, or my ISP as far as I can tell. I changed the logs to debug, but didn't see anything useful, or any errors related to the port, so I'm really at a loss here.

[shinger]

Hello Will,

As you are running Fedora and you are at loss here. Could you maybe run Deluge within a Docker container and do the same. To see if no other libraries or things on Fedora are causing this. As you would be running within a Docker container you could also experiment with different versions of Deluge to see if it would make a difference.

..yeah i know..it is farfetched, but i have also had my fair chair of weird things happen working in the Linux world.

https://hub.docker.com/r/linuxserver/deluge