We are also changing how remote playback works for streaming personal media (that is, playback when not on the same local network as the server). The reality is that we need more resources to continue putting forth the best personal media experience, and as a result, we will no longer offer remote playback as a free feature. This—alongside the new Plex Pass pricing—will help provide those resources. This change will apply to the future release of our new Plex experience for mobile and other platforms.
I moved on to jellyfin after I found out the hard way Plex servers need to authenticate for use. I’m sure by now there are ways to set up offline authentication but I already didn’t like the idea of paying monthly to stream my own content from my own machine. It just didn’t make sence to me. Jellyfin isn’t perfect, or as flashy as Plex, but it works, looks fine, and its free, not counting a much deserved donation to the devs .
Plex Media Server- Settings : Network : List of IP Addresses and Networks that are allowed with Auth : 192.168.4.0/24, e.g.