I figured out my own answers through trial and error:1. Use the LAN
port.2. The Connected Status will say "Mesh" when backhaul isn't working
and "Wired" when it is.
Which port would be used on the 2 remaining Nest Wifi Pro Pucks? The WAN
port on each or the LAN port on each? Any special config needed on those
pucks after plugging them in? I currently have one of the Pros as the
router. Its WAN port is connected ...