Homepage will load forever when opening web client on host with no network connected

[codenius]

Describe The Bug When running Jellyfin server on a Windows machine you can't access the homepage of the web UI (loading spinner forever) while not being connected to a network. Although, loading finishes successfully as soon as network is connected (and also when enabling personal hotspot).

You can search, stream media, view favourites and change any settings while you're not connected to a network, only the homepage doesn't load.

Steps To Reproduce

1. Setup Jellyfin (portable in my case), confirm firewall exception for any network type
2. Disconnect all network (disable WiFi, remove Ethernet cable, disable Personal Hotspot: ipconfig shouldn't show any IP addresses)
3. Start Jellyfin
4. Open Jellyfin web UI in the browser (http://localhost:8096) on the same device

Expected Behavior Homepage loads as it does when the machine is connected to network, i.e. media tiles appear.

Ligitimate Usecase Using a laptop running a Jellyfin instance to stream on the go without network connection.

Logs No conspicuous logs in browsers developer console or Jellyfin logs.

System (please complete the following information):

• Platform: Windows
• Browser: Vivaldi, Microsoft Edge
• Jellyfin Version: 10.9.2
• Network settings set to the defaults