I won’t doubt that. I’ve just had Plex for at least 6 years and never had the complete inability to stream directly when the internet is down. It has always fallen back to local streams in my experience (when I had Comcast, this was a frequent occurance and would have otherwise resulted in me returning to emby).
I got that idea from the times when I couldn’t stream to my TV in my home while my internet was down. Switched from Plex several years ago though
I like shitting on Plex but you absolutely can stream entirely locally without internet.
There is a server side setting you need to switch off. If I remember correctly it deals with the way you sign into plex.
I won’t doubt that. I’ve just had Plex for at least 6 years and never had the complete inability to stream directly when the internet is down. It has always fallen back to local streams in my experience (when I had Comcast, this was a frequent occurance and would have otherwise resulted in me returning to emby).