@DAServices I also tried the factory reset and it still doesn't work. I will put in a ticket.

@DAServices I tried a reset (didn't push for 10-15 seconds, but it did start flashing blue again). These units are all M4's and I just bought them this week. I will try the factory reset and see what...

I had 3 Deco units (for ease, we will call them 1, 2 and 3). 1 is connected to the router and 2 and 3 are just on the mesh network. Everything works great. I bought a 4th M4 to put in my basement. I...