I have 7 M5 units installed as access point and connected through ethernet backhaul. The units keep dropping on/pff from the deco network and as a result it is impossible to do any video streaming (netflix/youtube etc) over the wifi network. I have tested everything to find if there is either a faulty unit or faulty cabling. The wired network in my house is perfect, I have swapped deco units throughout the house and made all of them master at some point. Nothing helps. I do notice strange band-with usage on all deco units. They are continously showing around 8-9 MB downstream traffic even if no devices are connected to them so I have looked at the device logs to see if I can find a reason for that but I cannot.

Would appreciate any help with this.