I noticed my ISP dropping internet connectivity occasionally. For home network user, that might look like Deco issue. I spotted one such drop today, looked at logs and can share log lines to look at....

I do not have devices with weak signal on my network, as far as I can tell, but I am getting plenty of these in logs. Perhaps, there are multiple reasons for those.

@DwayneM One router behind another router will not necessarily cause problems. Google for "double nat detected" and see different opinions on that topic. Also, some say having two routers behind each...

@Stefaan I have my mesh in similar configuration: M9 Plus Decos as Main and satellite nodes, running in AP mode. Main Deco node connected with Ethernet cable to Hitron Coda-4582 cable modem/router....

@Stevieruss I do not believe M9 has such intelligence (or complexity). When I set my pair of M9 with wireless backhaul, this is what Deco app reported. After I connected satellite M9 to ethernet...

My Deco prefers channel 40. Maybe it selects channel and sticks with it for a while, but it is definitely not just channel 44.