Hi @135!
Thanks for reaching out to the community.I'm sorry to hear that your Nest 2-pack Smoke & Carbon Monoxide Alarm 2nd Gen Wired is offline. But do not worry; I am happy to help you fix this issue.
I need to know a few things about your devices in order to provide you with a better resolution.
- Does the thermostat display show any error codes or messages?
- When did the issue first occur?
- When were the devices installed?
- Is your network 2.4 GHz or 5 GHz?
Please keep me posted.
Best regards,
Jeremy.
