Have you checked the Plex knowledge base and searched on the sub and Google:
Yes. I found a similar issue from 2018 that was resolved by an update.
Server version:
4.32.2
OS:
Windows 10
What you did?
I recently did a clean reinstall of windows and plex server. I’m not using a NAS or anything complicated; my PC has hard drives installed directly and is plugged directly into my router. I’m using a VPN that provides specific ports for me to use, and I have those open on both my router (Airport Extreme) and via Windows Firewall (I have both inbound and outbound rules set up for Plex. Both rules map remote 2332 to local 32400.) I also use the command netsh interface portproxy add v4tov4 listenport=2332 listenaddress=0.0.0.0 connectport=32400 connectaddress=127.0.0.1 on startup.
I have checked the Manaully specify public port box in Settings> Remote Access and specified the port I want to use through my VPN (2332.) I also have set the Preferred network interface option in Settings > Network to the correct one (the ethernet address, 10.0.1.18.)
What happened?
Plex reports that remote access is not available. I see that the Private IP address is the local IP address of my VPN (10.8.0.4.)
What you expected?
I expect for Plex to report its private IP is 10.0.1.18.
Thank you for reading!