Connect all three APs on your wired network to get started. When Unleashed is
setup, you can move one of the APs to it's intended Mesh location. The other two
will decide who is going to be the Master AP (on the wired LAN). A Mesh AP can
not be the Master, but your other two will provide backup Master capabilities if one
goes offline. Your remote AP will Mesh to the one it sees has the best signal (and
hopefully can reach the other, if needed).