I have had UPnP enabled and then all of a sudden it stopped working. I am not sure if it was due to the last update or what. I have even tried to configure port forwarding but it still states “Not available outside your network”
Just to confirm, in Plex server web, under Settings → Remote Access, did you also check “Manually specify public port” and set it to 32400 to match the router settings you posted?
There was an issue with my router not communicating with the TP-Link Omada Controller. I should have checked that first. haha. Thank you for helping though.