I didn't get Antminer to use DHCP at all on LAN interface, nor use static settings.
So i chose to switch WAN to static and now i cannot connect to it's admin at all despite i see it finally on the network :/

What's the method to return it to "factory settings"?

EDIT: The good news is that it's at least hashing
EDIT 2: Found the info with a bit of googling, seems ot be hashing strong from pool stats so i won't be touching it just yet