I have 5 units of Deco BE85 in my house with the following setup:

Ground Floor:

1. Main deco (living room) - connected to modem

2. Satellite deco (terrace) - wired backhaul connected to Main

3. Satellite deco (kitchen) - wired backhaul connected to Main

1st Floor:

4. Satellite deco (hall) - wired backhaul connected to Main

5. Satellite deco (main bedroom) - wireless backhaul

The problem is with deco #5, the only one connected via wireless backhaul (in master bedroom).

Proximity is good, not many walls blocking, and whenever I am connected, the connection quality is Strong with full bars all green.

However in a day, at least once or twice this unit disconnects with flashing red light and re-connects moments later. If I am unlucky, it does not re-connect and sometimes powering it off then on gets it connected again. Other times I have to reboot all routers for the wireless unit to finally connect.

Is this a firmware or software thing? Is having other units connected via wired backhaul causes the one connected wirelessly in the network to be buggy?

Note: before on wired backhaul for the other units, they used to be all on wireless backhaul for a couple of months. Have never encountered this disconnecting issue.