@TP-Link 

I was away and just saw the reply.  By Deco LED status, which one do you mean? Is it the LED on top of each node/repeater? In that case, usually it is white. I'll pay closer attention when it happens, as it happens quite randomly.

About troubleshooting steps - not much. I have no idea what to check for to troubleshoot the issue. Does it make a difference if they are setup as 'Wireless Router' mode, vs 'Access Point'? The internet modem connects via dynamic IP, given by the service provider.

Regards,

Karl

@KarlC 

Unfortunately I will be going away abroad for 2 months in a few days, and part of the place is rented out. I want to refrain from installing debugging firmware while Im not here, because as it is, it mostly works - This might introduce issues which are a hassle to solve when Im not here.

I personally use a laptop and a smartphone, and both experience intermittent disconnections.  I have never managed to find a pattern, and I'm not even sure if they disconnect at the same time.  Connection is restored solely by waiting most of the time - I do nothing.

What happens when you turn off "Mesh Technology"?  The whole point of having the mesh system was for that, so they can seamlessly switch between nodes.  

I get the issue both when I am connected to the Living Room Deco (Main), and also to the Bedroom Deco one.  Given my physical location in the property, it is very rare that I connect to the Hallway Deco.