@lqvnguyen said:
Just change it to something other than 32400 in the Plex Web App. Show Advanced under Settings | Server | Remote Access | Server Mapping | Manually specify port
That won’t work. That only affects the external port.
@millardjk said:
Is there a way to modify the server listening port so I can get port forwarding to work correctly, or am I screwed because it’s the only way to get the local clients to work?
The internal port is hard coded and cannot be changed. The only way I can see this possibly working is by purposely setting up a double NAT. Basically get another router and connect it after your ISP provided one. Then from your ISP router forward say external port 20,000 to router 2 IP:20,000 for server 1 and external 21,000 to router 2 IP:21,000 for server 2. Then on router 2, external 20,000 to server 1 ip:32400 and external 21,000 to server 2 ip:32400.