Jellyfin works through browser but not through Infuse (TailScale)

I am running TailScale and on my cell phone network (not wifi) I can access my Jellyfin server without any problems using the local IP (192.168.x.x). However, when I try to add my Jellyfin server (using the same IP address as via the browser) to Infuse, I can an error “Unable to connect to server”.

I am struggling to understand why the same device under the same network connection can connect OK via the web browser but not Infuse.

I would appreciate any replies/help! Thank you.