Well, that: Used to work, had to remove it. I added it back a couple of hours later and now it isn't working.
I can bridge the connections and Wi-Fi seems to connect. But the other connection won't work on the parent OR child machine. I also tried a "regular" bridge with the same result; doesn't seem related to Hyper-V itself but to networking.
I'm not sure where to start looking what went wrong. Seems the bridged adapter is not getting anything from the Wi-Fi at all (doesn't even recognize the network or get IP).
I don't need a workaround, I just need to troubleshoot what got messed up with the network bridge. Please, any help will be welcome.