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Network problems with Plex in docker (lemmy.dbzer0.com)

submitted 2 months ago by [email protected] to c/[email protected]

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I am hoping that you awesome people can help me with something I've noticed in my Plex logs. Quick notes on my set up:

Mini PC running Ubuntu 22.04, portainer, Plex, arrs and calibre all running in docker. All of these except Plex are using a bridge network that I created in portainer. The PC is connected to the router by ethernet cable, and I have set up a static IP in the router settings. I have also added the static IP info into the network settings in Ubuntu.

The following text is repeated over and over in the Plex Media Server log, about 6 seconds apart. My playback is mostly fine, but I have been experiencing buffering. Regardless this can't be right!.

n.b. I did post elsewhere but I feel that this is not necessarily Plex related and you can likely help with this more technical question.

DEBUG - NetworkInterface: received Netlink message len=88, type=RTM_DELADDR, flags=0x0 Aug 22, 2024 18:51:49.636 [139016208919352] DEBUG - NetworkInterface: Netlink address message family=2, index=3, flags=0x0 Aug 22, 2024 18:51:49.636 [139016208919352] DEBUG - Network change. Aug 22, 2024 18:51:49.636 [139016208919352] DEBUG - NetworkInterface: Notified of network changed (force=0) Aug 22, 2024 18:51:49.637 [139016208919352] DEBUG - Network change notification but nothing changed.

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[–] [email protected] 1 points 2 months ago* (last edited 2 months ago) (1 children)

What plex container are you using? I would recommend the linuxserver one. I believe you may be running into this:

If you want to run the container in bridge network mode (instead of the recommended host network mode) you will need to specify ports. The official documentation for ports⁠ lists 32400 as the only required port. The rest of the ports are optionally used for specific purposes listed in the documentation. If you have not already claimed your server (first time setup) you need to set PLEX_CLAIM to claim a server set up with bridge networking.

EDIT: I misread your post, you're using network_mode: host?

[–] [email protected] 1 points 2 months ago

Yes, I'm using hub.docker.com and portainer. The other 7 or so containers are in bridge mode on the network I set up. Plex, per the linuxserver.io docs, needs to be under network mode host.

I have set port forwarding on my router to allow external access to port 32400.