Why is Plex is trying to connect to non-existent IP Addresses

General Discussions
1

My Plex server has a local ip address of 192.168.0.100. My router is 192.168.0.1. All other devices on my network are 192.168.0.103, 192.168.0.104, 192.168.0.105, 192.168.0.106

When I connect to the server from a web browser on the local network using 192.168.0.100:32400/web/, something is trying to connect to two other unfamiliar internal yet nonexistent ip addresses of 192.168.86.96 and 192.168.86.51. As you can see, 192.168.86.*** is not even my router’s ip addressing scheme.

I only know this because I use the Firefox NoScript Add-On to block scripts from IP addresses that I don’t specifically approve. What is Plex trying to connect to?

2

that’s really strange.
a wireshark capture could tell us what it’s trying to do.

3

These are very probably the private IP adresses of Plex servers shared with you.
(or old, now defunct Plex servers of yourself which may still linger in the server list)

Plex clients always try to connect first to the private IP address of Plex servers.
Just in case if a direct route exists, this will be used instead of the default route over the internet.