My thermostat worked great for a week, then the icon showed up that said it wasn’t connected to the Internet on my Wyze App on the phone. Verified Wifi was working and could still control the thermostat from my phone, but it won’t connect to the Internet or Alexa. Had to do a hard reset on the Thermostat to get it back. Noticed that the the thermostat picked a new IP address when coming back on line. Was using DHCP on my router for the thermostat, and the IP address wasn’t changing… Also the thermostat has 3 bars of Wifi since it is less than 15 feet from the Mesh Router. So Wifi connectivity shouldn’t be an issue. This week the same problem with Wifi working fine, but no connection to the Internet per the Wyze App and Alexa not connecting. Did another hard reset of the thermostat to get it back. Have now statically mapped (reserved) the IP address on my router to see if that has any effect. Don’t think that this will fix the issue since Wifi continues to work when this occurs. Sent in my logs on this to Wyze, and haven’t received any reply yet. Now I’m wondering if the thermostat uses one IP address for local Wifi access and may ask for a temporary IP address or port for connectivity to Alexa and that IP address or port is not working well with some routers DHCP configurations. Just to put the solution to another issue with Alexa connectivity in one place, here is a link to my response when the thermostat did not connect to Wifi. Thermostat not connecting to cloud, now won't setup after reset - #3 by vtester