I have a 3-way circuit with two 3-way switches.
The lighting circuit load consists of 6 LED can lights which I believe amount to around 60 watts total power draw (if that much).
I replaced one of the 3-ways with a HS-210. The other switch is a mechanical 3-way switch which I did not touch. The switches work fine if controlled manually except that the power-on indicator in the Kasa (IOS) app never glows if I activate either of the switches manually. However, if I activate the HS210 to turn on the lights via the app the power-on indicator illuminates momentarily then goes out after a second or two. The lights stay on as they should.
I am able to turn the lights on from Alexa, but am not able to turn off the lights via Alexa.
This is my second set of HS210 switches. I returned the first set to Amazon as I thought that the HS210's were defective.
I am wondering if perhaps the HS210 required more load than the 6 LED can lights are drawing to work correctly.