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Google Nest thermostat won’t connect to Wi-Fi? Here’s what to do

Having a smart thermostat like the Google Nest can make managing your home’s temperature a breeze. But what happens when it suddenly won’t connect to Wi-Fi? Don’t worry, we’ve got you covered with this simple troubleshooting guide to get your Nest back up and running in no time.

Inspect Your Nest Device:

If your Nest thermostat displays a “No power to RC wire” message, it might not be receiving power. This could indicate a faulty device. Contact an expert for repairs or to explore replacement options.

Check Your Wi-Fi Connection:

Ensure that your Wi-Fi is operational by trying to connect with another device. If your other device also can’t connect, reach out to your internet service provider to verify service status in your area.

Location of Your Router:

Check the placement of your router. If it’s obstructed by furniture or located in a closet, consider relocating it to an open area closer to your Nest thermostat. Weak signals could be the culprit behind the connection issues.

Verify Wi-Fi Password:

Double-check that you’re using the correct Wi-Fi password. If you’re still using the default password, it’s time for an update. You can typically find the password on a label attached to your router.

Compatibility with Router Settings:

Ensure that your Nest thermostat is compatible with your router’s settings and Wi-Fi network. If you have a dual-band router, try connecting to the 2.4 GHz network first before attempting the 5GHz one.

Confirm Network Addition:

Check if your Nest thermostat has successfully added your Wi-Fi network. You can do this by navigating to the network settings on your thermostat and verifying the connection.

Restart Your Nest Thermostat:

Restart your Nest thermostat to potentially resolve connectivity issues without losing your settings. Follow the instructions provided for your specific Nest model.

Restart Modem and Router:

If the issue persists, try restarting both your modem and router. Ensure all cables are securely connected, then power off both devices for 30 seconds before restarting.

Update Your Wi-Fi Router:

Regularly update your Wi-Fi router’s firmware to ensure optimal performance. You can usually do this through your router’s settings.

Check App Version:

Make sure you have the latest version of the Nest or Home app installed on your device. This can help resolve compatibility issues and ensure smooth operation.


Don’t let Wi-Fi connectivity issues with your Google Nest thermostat disrupt your comfort. By following these simple troubleshooting steps, you can quickly diagnose and resolve most connectivity issues, ensuring your smart thermostat continues to keep your home at the perfect temperature.


1.Why is my Nest thermostat showing a “No power to RC wire” message?

This message indicates that your Nest thermostat isn’t receiving power through the RC wire. It could be due to a faulty device or wiring issue.

2.Can I use a mobile hotspot with my Nest thermostat?

It’s not recommended to use mobile hotspots, public/guest networks, or enterprise networks with Nest thermostats due to security and compatibility concerns.

3.How often should I update my Wi-Fi router’s firmware?

It’s a good practice to check for firmware updates regularly and install them as they become available. You can typically set your router to update automatically for convenience and security.

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