Thermostat Showing Offline But Still Works In App

[Mark5]

Some info here …

Thermostat keeps going offline

Purchased the Wyze thermostat a couple weeks ago. Set it up and within a couple days it went offline. I did a factory reset then it came back online. A couple days later it went offline again. Did another factory reset to get it back online again, that worked for a couple days. Now it’s offline again — any ideas as to what’s wrong?