Solid Thermostat now works well. Software setup difficult, 1.required 2.4 GHz band. Mine 5 GHz. Separate SSID solved. The setup still did not work. Called 800 support and solved. Samsung Note 8 and Google Pixel 2.needed airport mode in setup.
After having issues trying to install the wi-Fi app. I contacted Honeywell and they were able to walk me through it but for some reason we cannot get the warning light off so the warning light is still on I was told over time it may go away.