Hi there,

I noticed this morning that my internet connection was getting scrappy. All 3 of my Deco units across the house had a red light but the master unit seemed fine. The connection continually dropped though. So I unplugged the other 3 units and left only the master unit on. I did a factory reset via the button underneath for 10 seconds, and after the flashing blue light arrived, I went through the process on the app of setting up the device, with only that one plugged in. Everything looked good and the solid green light was on, but then after one speed test, the device drops connection and the yellow light stays on. It continually goes on, and off with the ethernet connection light on the modem showing and dropping. 

I tested this by connecting directly via an ethernet cable to the modem, and bypassing the Deco altogether, and everything works perfectly. So the problem is with the Deco device. I've also tried some of the other devices to see if it's a single device issue, but I'm getting exactly the same problem. Any ideas on what could be causing this?