Do you use it offline without a Microsoft account?

I use Rhythmbox to edit/import/maintain my music collection and sync my iPods, and then I use Lollypop to play my music from my computer. Lollypop has next to no of the aforementioned features but its just nice to look at and simple.

If I look at the HA log, the thermostat seems to disconnect and reconnect itself every few minutes. Does yours do that? After looking closer at it, I think this is an issue with the Rheem thermostat not staying connected to the home WiFi network.

Also, have you considered wiring in to the thermostat directly to avoid having to use a Rheem account?