I had a plex server up and running perfectly. I upgraded the PC, and I cannot get remote access to work (I also cannot get the guide to load for live TV using a Homerun box) Pinging the IP shows port 32400 is CLOSED
It’s not my router - The port forwarding was set up for the old machine. Just an IP update, and it should be good. But, I have put the new machine in the DMZ while I am troubleshooting
Any ideas? I am stuck. On day 3 of trying to figure this out. I am NOT a linux expert, but I can poke around and generally figure things out. This one has me stumped
Just to be clear… the port forward is pointing to the local IP of the new PMS (located in your DMZ)?
If you cannot access the router / public port while the port forward is properly configured and there’s nothing else on your router that’s blocking the traffic… that points to your ISP as a potential root cause.
Have you already checked with them if they’re filtering some traffic?
Alternatively… have you tried using a different external port?
Yes, port forwarding is set up and pointing to the internal IP of my machine.
It is not the ISP. I can plug my old server back in and it works fine. I cannot get a connection to the new box.
Just tried a new port (32100) and it is still failing
In which case it seems more like an issue with your router configuration…
unless maybe you didn’t enable Remote Access for that new server – which I consider unlikely
If you still have the old port forward for the old machine…
Have you made sure both machines are listening to a different public port (you cannot have them both accessible from the same public port as each public port can only be forwarded to 1 machine in your local network).
Also… the new PMS is configured to listen to that different manually specified public port in Settings > Server > Remote Access?
Old computer is powered off and unplugged. New computer is now in it’s place. Remote access is enabled, but I cannot connect to it. PMS is configured to 32400, and the router is pointing traffic there. I am fiarly confident it is not the router. If I swap back to the old computer, (and just update the IP address in the router) everything works fine. The computer is in the DMZ so no ports are being blocked.
Runnning a scan of open ports from within my network, it does not show port 32400 as open. So, it is definitely something on the linux side. Linux is rejecting all incoming requests
I’m on same OS and remember having a similar issue about a year ago.
Just going to relate what I remember. (I never disabled or made any adjustments to UFW, btw.) Port forwarding with a static IP address at the router-level worked for me with Plex FOR YEARS until I reinstalled my OS about a year ago. I remember a maddening few days where the forwarded port showed as closed when using a port scanner, and the “accessible” indicator in Plex would go green and quickly switch to red. I ended up enabling UPNP for my Plex box on the router side instead of port forwarding, and unchecking the “manually specify port” to let Plex choose the public port. Everything went green then, and life was good. Since then, I have done a couple of OS upgrades and reinstalls, with no changes to this setup and no issues.
This fixed it! Thank you so much! I have been losing my mind! So weird because I have 2 identical linux mint boxes (different hardware). The new one needed this, the old didn’t.
