My local Plex server to AppleTV client has always worked fine on the rare occasions my internet has been down. Since I started using Plex near 10 years ago I’v

My local Plex server to AppleTV client has always worked fine on the rare occasions my internet has been down. Since I started using Plex near 10 years ago I’ve never experienced any sort of service unavailability. You do need to be online though to set up a client for the first time to your local server, which is annoying, but has never been a problem for me.