Installation issues with Jellyfin - No network in LXC

[ZacDonald]

Let me first start with, this could just be my setup, but I had been dealing with this problem for a few weeks, found a work around, but I can still recreate it and haven't had issues with other community scripts like Home Assistant or Backrest.

When installing it will always fail with:

No network in LXC yet...

But if I try an install with advanced settings and put in a DNS server (tried my gateway and 8.8.8.8) it works.

If I run resolvectl status on a LXC that successfully installed and one that failed, the DNS servers are the same, but the unsuccessful install has an IPV6 DNS server listed after, not sure if that's what is breaking it for me. The failed server will still get an IP from the gateway, but not have internet access.

[michelroegl-brunner]

That sounds to me like a network issue as you describe that. When you get a IPV6 DNS Server check your DHCP Server/Router and disable all IPV6 functions if you dont use them. This can be a problem if you habe IPV6 configured on a LXC with no IPV6 or DualStack Internet.