Unsure why my setup might be strange. I'll note that it caused really difficult to diagnose effects, namely everything looked right in Tailscale status, and everything could connect (directly), but the latency was huge. Both Symphonium (connecting to Jellyfin) and Audiobookshelf were effected...
Recently had an issue with Tailscale on Merlin, trying to connect my phone and mobile devices to Jellyfin and Audiobookshelf. It just doesn't work.
This was - in my case - due to the fact that IP Forwarding was not enabled. Unfortunately, the Tailscale documentation suggests that you modify...