Diagnosis
The thermostat is losing its Wi-Fi connection. This is typically caused by router settings that conflict with the Mysa's stable connection requirements.
How to Fix It
Log into your router's admin settings. Disable the following features for the Mysa's IP address or MAC address: Band Steering, Airtime Fairness, and Smart Connect. Ensure the Mysa is connected to a 2.4 GHz network, not 5 GHz.
If That Didn't Work
The issue may be signal strength. Use the Mysa app to check the Wi-Fi signal strength on the thermostat's settings page. A value below -70 dBm is weak. Consider a Wi-Fi extender.
Heads Up
Router firmware updates can sometimes re-enable these problematic features. You may need to repeat this process after a router update.