I live in a long, thin house where the incoming internet cable is right at the front of the building. I want to build a mesh network to replace my old Powerline set up but I need to be able to run the

I have a network made up of a WPA4220 KIT (V1.2) to which I have added two more WPA4220 extenders (V4). Until this afternoon they all worked fine, scattered across the house and all using the same SSI