I have 2 deco m5 units, the main is connected via PPPOE to my fiber network, The other port on the Main deco is connected to the 2nd deco. the other port on the second deco is connected to my wired ne

Ethernet Backhaul is a feature that makes it possible to wire the Deco units together. Thanks to this feature, every two Deco units can be wired with an Ethernet cable. And Deco will transmit data bet