SOLVED: ExpressVpn breaking Jellyfin

[SilveryAbaba]

trying to better understand your setup

jellyfin server is installed and running on the pc
tailscale is on the pc which allows external traffic to connect to your jellyfin instance

if that's correct; excluding expressvpn for the moment
jellyfin is successfully being accessed from where, LAN or External through tailscale?

then when expressvpn is up and running it is also running on the same pc creating a 3rd network
jellyfin can no longer be accessed from where, LAN or External through tailscale?


the routing bit is important to understand which way the traffic IS being routed vs how it SHOULD BE routed

Thanks for trying to understand! Jellyfin server and tailscale is on my desktop yes. I can only access on LAN on my server computer through localhost:port when ExpressVpn is connected, but not ip:port or MagicDns:port on browser or jelly media player. All external devices (ie, can't use localhost:port) cannot access. ExpressVpn should exclude tailscale and jellyfin from the third network because of the split tunneling above (I think). As soon as I disconnect ExpressVpn everything works as it should. Expressvpn on a client also with the same exclusions cannot connect as well, but does as soon as it is disconnected resumes playback.
Edit: because localhost:port does not work on clients, I believe tailscale is routing externally to make a successful connection without ExpressVpn