Re: Plex Web
Maybe this update to Plex Web 3.97.1 affected things:
- Added a confirmation step before allowing insecure fallback connections to a server.
If I directly access PMS, https://192.etc, then Plex Web is v3.95.2, and I see the Allow Fallback to Insecure Connection options.
If I use app.plex.tv, now at v3.97.3, I do not see the Allow Fallback... options.
Re: Secure Connections
Have you tried disabling secure connections at the server level?
PMS Settings → Network → Secure Connections = Disabled