Question about TP-Link Deco X60 (3-pack)

Try giving the main deco to another deco and swap them at the location. This way you can test whether it is the Deco itself. Do the Decos get unusually hot or something? You should also place them in a free-standing position with sufficient air circulation. Otherwise install all available updates. Greetings

Is the main Deco online? I myself only have this phenomenon when the main Deco is offline.

I generally have problems when I need to update the system, for example, otherwise the system runs perfectly.

Sorry, I'm not very technically savvy...

I had a similar problem. I recommend disconnecting all the devices from the power, then when you reconnect them perform a network optimisation via the app and check for new updates. After these interventions, mine worked properly again.