All smart switches stopped working
All of my kasa smart dimmers HS220 and smart switches HS200 stopped working with Alexa and the Kasa app. I deleted all devices from the app to try and re-pair. Now none of the devices will pair. I long press the button on the bottom left corner until it start flashing orange and green, start the pair process, choose the devices wifi network, select my wifi, enter the password, then the app tries pairing for a couple of minutes before they error out. All switches were working fine since I initially set them up several months back until two days ago. I noticed Kasa updated the app a week ago, so wondering if that has something to do with the problem, and more important, how to fix it.