Display useful details when connection fails

[caluml]

Describe the bug

Ensure you have working IPv6 connectivity on your phone (https://test-ipv6.com/)
Ensure you can log in via a desktop over IPv6 using the IPv6 address.

Start the app
Enter https://[200a:1a3:124c:2ee5::2141]:8920 (enter the correct address, obviously)

After a few seconds, it says:
Unable to reach server:

• https://[200a:1a3:124c:2ee5::2141]:8920

Logs

Unfortunately, I can't provide these, due to the way things are set-up here.

Application version

2.6.2

Where did you install the app from?

F-Droid

Device information

Asus Zenfone 8

Android version

Lineage 20

Jellyfin server version

Unsure

Which video player implementations does this bug apply to?

• Web player (default)
• Integrated player (ExoPlayer)
• External player (VLC, mpv, MX Player)

[caluml]

Whatever the issue is ultimately, a better error message than "Unable to reach server" would be very helpful

[caluml]

After some experimenting, it was due to the SSL cert.
It was either because it was self signed, or perhaps because the IP address wasn't listed in the certificate.

Could I suggest

• an error message on the connection screen for when the connection fails, detailing what the underlying issue is? I.e. connection timed out, read timed out, certificate is untrusted, 403 received, etc
• also, an "Ignore SSL errors" checkbox for situations similar to this