A reinstall of Plex fixes it temporarily. But after a few days usage it’ll potentially go offline again. It’s strange and I can’t seem to diagnose the fault.
It can’t be my network as I have the same issue connecting remotely from other networks yet my wife’s connects fine.
Starting to think the culprit may actually be the mobile as it’s the only constant but I was just checking that no-one else has experienced this issue before I go and rebuild it.