Hi @Cresentwench,
Thank you for posting in the community. I understand your Nest Thermostat is currently showing "offline" in your Google Home app on your Samsung Galaxy S25 Ultra, even though the thermostat display itself indicates it's connected to your Wi-Fi network, which can be very frustrating. Let's work together for a solution.
To help me understand what might be causing this and guide you towards a resolution, please provide the following details:
- What specific Nest Thermostat model do you have?. (Please visit How to tell which Nest thermostat you have to know more about.)
- What is the current software version displayed on your thermostat?
Can your other Wi-Fi-capable devices (like your phone, tablet, or computer) connect to the internet through your home Wi-Fi network without any issues?
- Has your thermostat ever connected successfully to your network and shown as online in the app before this issue started 3 hours ago?
- Have there been any recent changes to your home Wi-Fi network (e.g., a new router, a change to the network name or password)?
- Can your thermostat find or detect any other Wi-Fi networks in its list when you go through the network settings on the device?
- Is your Wi-Fi router or access point within a reasonable range (1 to 15 meters or 3 to 50 feet) from the Nest thermostat?
Your responses to these questions will greatly assist our specialized team in diagnosing the problem. Once I have this information, I can either guide you through specific troubleshooting steps or escalate your case for a deeper review.
I'll look forward to your response.
Regards,
Kevin
