@Dan_C. Yes, I just forgot to replace "modem" with "router" in the second picture :) As a router - D-Link DIR-825ACF WITHOUT a switch (when access points are connected directly to dlink) - I have...

@TP-Link Deco I'm trying to setup Ethernet Backhaul feature with 2 x Deco M4R in AP mode (The 1st port of each Deco is connected to a LAN port on the router): Should they work with such a connection?...