What “went dead”? The server crashed and stopped? The app on the client you’re using crashed, gave an error?
Did you try on multiple clients? Mobile, plex desktop, another computer?
Did you confirm your server and clients are on the same subnet? No device isolation rules on your router?
Is the windows network connection set to “private” vs “public”? Public will block local connections to the server and send plex remote, giving you the prompt to buy a pass.
If you’re getting the pass prompt in a browser, are you using app.plex.tv vs the local direct sever ip url? Make sure the browser has local network access: Important note about the Plex Web app - Local Network Access
Any vpn running on the server?
