@Loeb I should mention that all my units are connected with an Ethernet backhaul. It doesn't seem to matter if I have the satellites connected directly to the Main Deco or through switches.

I have exactly the same problem with my X55 Pro 3-pack. When I use the web management page in a web browser to look at my Deco mesh network, I see all 3 of my APs and everything looks great. I even...