Plug failed - factory reset fixed

One of my KP115s developed a fault.

Seemed to be responding to Off/On requests from the Kasa App, but left the power on to the connected plug bar.

I removed it from the App, which forced a factory reset. Appears to be fixed now. (A software reset is much nicer than sending the plug back for a warranty replacement. Puzzling how this works though. )

Failed again, and a factory reset hasn’t fixed it. I guess the relay has failed.