I've had a switch and a dimmer working fine in Kasa and Google Home for several months. Added a new dinner and it was showing up as offline in Google Home even though I could control it with the Kasa app. I unlinked Kasa, and tried to re-link it. At first Home said it couldn't track Kasa then the next try it seemed to connect to Kasa, but it said there were no compatible devices. All switches and dinners are set up in Kasa app and cash be controlled over both cellular data and WiFi.