@PPBranco I have good news and bad news for you. Good news: when running Deco mesh in AP (Access Point) mode, you do not need to keep Main Deco directly wired to router. You only need that for...

@jeffm_614 If I understand you correctly, you are saying that client connected by WiFi to ATT gateway does not roam to Deco node. Solution is to disable WiFi on ATT gateway. If it is not possible,...

@Pemtium As long as you run Deco mesh in AP (Access Point) mode, this setup will work. But, why M9/M5 combination? M9 has dedicated backhaul, but that only works on two M9 connected to each other...

@TheoTM Adding to what @crizthebard said. I am also M9 user, own pair of them, one is wired another is wireless. Not wired M9 really shines when it has good 5GHz signal for its backhaul to another...

@Dave912 My Deco mesh, which is M9 and M5, do change channels. It is currently on channel 48 for 5GHz and channel 4 for 2.4GHz. I do not have many 5GHz networks reaching my house, but out of five...

@Gromsdal You may need to upgrade firmware manually, through upgrade tool or web interface, if app refuses. Both NA and EU M9 Plus have 1.4 firmware as latest. See instructions on Deco M9 firmware...