@Wayne-TP this is a wild response to this thread because all the other switches from Kasa work fine, it is only this specific switch that has an issue so clearly there is an issue with this specific...

@ValentinMTL I can pretty much confirm it has to do with homebridge (or whatever 3rd party service). I had it on and it crashed within hours, had to restart switch. I turned off "3rd party services"...

Following this. I just got one of these installed (KS220M), running firmware 1.1.6 and using homebridge plugin. Will see if this constant polling causes the switch to crash. Other switches and plugs...