mdns-discovery might return an error if network doesn't support IPv6

[silvanocerza]

[silvanocerza]

This issue is hard to reproduce, we need to understand what the actual network configurations are causing this.
For more information I suggest contacting @sebromero, he has access to a network that causes this exact issue and it will be certainly helpful troubleshooting together.

[per1234]

Since this issue is so lacking in information, I'm going to close it in favor of the more recent duplicate #25