No connection to server, "Connection refused" when accessing web app

Plex Media Server NAS & Devices
1

Server Version#: 1.18.2.2058-e67a4e892 armhf
Player Version#: All

Everything was working fine, then one day I was not able to access the server from any player. I am also not able to access the web app either on the server device (Raspberry pi 3B+ running Raspbian) or from another device using the pi’s IP address.

/var/lib/plexmediaserver/Library/Application Support/Plex Media Server/Logs/Plex Media Server.5.log says the following:

WARN - NetworkServiceBrowser: Error sending out discover packet from 127.0.0.1 to 127.255.255.255: Operation not permitted

2

Your network adapter isn’t working.

You should have something on 192.168.x.x, 10.x.x.x, or 172.16.x.x -> 172.31.x.x

3

Ok, how can I fix that?

4

I found the solution.

delete (or rename) the Plex Preferences.xml file located at /var/lib/plexmediaserver/Library/Application Support/Plex Media Server,
run:
sudo systemctl restart plexmediaserver

and voila, I was able to access the web app, run the setup wizard, and get going.

5

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