Plex Android app won't find my Plex server

Server Version#: 1.43.2.10687
Player Version#: 2026.10.0

I tried to use Plex again after a while and I’m having problems with the Android app. I have a lifetime plex pass. I just want to play media from my server. I just installed Plex server on a Windows 11 system and used server version 1.43.2.10687. My Android phone is a Pixel 7a. Using the chrome web browser on my phone, I can access my Plex server and play videos, but obviously it’s difficult to use. With the Android Plex app installed (on the same phone) it always says my Plex server is offline. Any idea how to fix this? (Due to using my phone for work, I’m prevented from side loading APKs)

Android app version 2026.1.0 on an old Android tablet also shows my server as offline

Plex server version 1.42.2.10156 seems to work with my Android phone app. Any chance someone can look into the problem with the latest plex server for Windows?