Service replies doesn't work correctly (in Windows?)

[PatrLind]

When I register a service and zeroconf is about to reply to queries it will try to send a response to all available network interfaces, however this doesn't seem to work correctly on Windows.
The message is sent multiple times to the loopback interface and not to any of the external interfaces.
I can therefore discover my service correctly on the local machine (using the dns-sd command line tool), but other machines cannot see the service.
If i look in Wireshark I can see that the incoming query is on my network interface but the replies are only ever sent to the loopback interface.

Is this a known problem? Any work-arounds or solutions?

[tmm1]

You can build go/net with these patches: https://go-review.googlesource.com/c/net/+/76950/2

[PatrLind]

I will try the patches shortly, in the meantime I experimented a bit by setting the multicast interface in the joinUdp4Multicast() function in connection.go.
It seemed to do the trick in this specific case.
Example (added just before the return pkConn, nil:

pkConn.SetMulticastInterface(&interfaces[0])