With the recent server updates (around 2–3 versions ago), I’ve been experiencing an issue when accessing https://app.plex.tv using Microsoft Edge. Occasionally, my libraries show exclamation marks and become inaccessible. Restarting or rebooting the server/browser does not help, and the issue usually resolves itself hours or even days later without any changes to my server or network.
What’s strange is that I can always access the server normally through the Plex iOS app. This problem only started appearing in recent months — I never encountered it before.