Problems accessing my server, local and tailscale

[TheDreadPirate]

Did you setup split tunneling in Tailscale? That would enable local and VPN access. From a Jellyfin perspective, everything looks fine. It sees both interfaces and has no problems binding to both.

One thing you do need to double check is whether you enabled remote connections or not. By default, the tailscale address space is not considered a "local" address. Without remote connections enabled, connections from tailscale clients would not be allowed. Though it should still show you the login prompt.

You can either enable remote connections or add the tailscale address space to the LAN networks field.

Dashboard > Networking > LAN Networks

192.168.1.0/24,100.64.0.0/10

Depending on what you choose, this can also affect how bit rate limits are applied. This is assuming you set bit rate limits for remote clients.