I’ve had this thermostat for three years now with no problem, but in the past week, the ST app and Alexa have stopped being able to control it. The thermostat still reports to ST, so if you check the “Recent” tab it is accurate on when the A/C runs or what the temp was set to.
If you adjust the temp on the app, the app says the temp has been changed, but it hasn’t if you check the thermostat. Any ideas on how to even start troubleshooting this?
Thank you for your help.