Google Nest Community

Hello all I am having connectivity issues with 2 of my 4 Nest thermostats. 16 days agon2 of them went offline and cannot get them to connect. I tried resetting one of them and I get “Unable to Find W-Fi Network TD004 (0.65)” I tried different routers...

I currently have 3 nest learning thermostats and thermostat e . I recently added the c wire when I started getting the error e159. Before that my unit would work fine but occasionally would go offline for low battery. I decide to add the c wire to co...