Hi cuddy6380,
Thanks for posting here in the community forum. I’m sorry to hear that your thermostat is not connecting to the phone app. Don’t worry; I'd be more than pleased to help.
I'd like to ask you a few questions to gather more information about the concern to offer more assistance.
- What model of thermostat do you have? For your reference, consult this article: How to tell which Nest thermostat you have.
- When did the trouble first occur?
- Do you see an error code or notification on the device?
I'll be looking forward to hearing back.
Best regards,
Daniel
