Cannot access server remotely anymore

Server Version#: 1.42.2.10156

A couple weeks ago I updated my Media Server(on a Windows 11 PC) and ever since have been unable to remotely access my media library from outside my network. No device can even see the libraries anymore.

I operate from behind a VPN, but had been(and continue to) let Plex bypass it for the sake of simplicity. Turning off the VPN does not help, and all of the suggestions in the troubleshooting section just throw up a variety of errors when I attempt to implement any of them. But I don’t see why I should even HAVE to do anything when everything was working fine before the update. (which, yes, I HAVE rolled back, and the problem persists)

I have no clue where to go from here. Any and all help would be appreciated.

EDIT: Issue solved thanks to Reddit. The problem was tracked down to an issue with my modem/router not knowing what the server’s local IP was(despite knowing it for EVERY OTHER DEVICE I’d ever connected to the network!), so I had to dig that up and enter it manually. By all measures it appears to be working without issue now.