If a Google Nest Detect is listed as offline on the Nest app, it has become disconnected from Google Nest Guard or Google Nest Connect. When a Nest Detect is offline it won’t be able to communicate activity in the room it’s in.
Before you begin
The Nest Detects in your home work a little differently than other Nest products do. Nest Detects don’t use Wi-Fi to communicate with the Nest Service. Instead, they talk directly to your Nest Guard. Your Nest Guard then uses Wi-Fi to send alerts and other information to the Nest app on your phone. So even if your home Wi-Fi goes down, your Nest Detects can still tell Nest Guard to sound the alarm (but you won’t get a notification on your phone unless you have a cellular backup).
Here are some things to keep in mind if your Nest Detect is offline:
- If your Nest Detect can’t reach Nest Guard or Nest Connect, it will appear as “Offline” on the Nest app.
- As long as your Nest Detect is offline, it won’t be able to alert Nest Guard when a door or window is opened or closed, or when there’s motion in a room.
- One Nest Detect being offline won’t affect the rest of the Nest Detects in your home. As long as the other Nest Detects are online and working normally, they’ll continue to sense activity and tell Nest Guard to sound the alarm if needed.
- If you’re using a Nest Connect to extend the range of your alarm system throughout your home, some of your Detects might talk to the Nest Connect instead. Your Nest Connect will then talk to your Nest Guard. So if both Nest Connect and Nest Detect appear as offline on the Nest app, you should troubleshoot Nest Connect first.
If your Nest Detect is offline, the steps below will help you troubleshoot.
If you’re having trouble with something else like adding your Detect to your account, refer to this link:
Important: Beginning in late July 2022, Nest Hub Max will no longer be able to be used as a bridge or range extender for your Nest Detect. If your Nest Detect currently connects through a Nest Hub Max, it will go offline and become disconnected from Wi-Fi unless you use a Nest Connect or Nest Guard as your bridge instead.
Troubleshoot Nest Detect offline
1. Make sure your Nest Guard is online
Since Nest Detect needs Nest Guard to connect to the internet, check that your Nest Guard is online and in range of your Nest Detect.
If Nest Guard is offline, the Nest app will tell you. Refer to the following link to help get it back online:
Note: If Nest Guard is offline, then your Nest Detects will also appear as "Offline." Nest Guard can still sound the alarm if any of your Nest Detects senses activity, thanks to the Nest Weave network. But you won’t get an alert on your phone.
2. Check the status of the Nest service
If the Nest service is down, all of your Nest products will be offline. You may also get the message: "The Nest service can’t be reached right now" on the Nest app.
Wait for the Nest service to resume to check if your Nest Detect and other Nest products come back online.
3. Check your Nest app version
4. Update your Nest Guard software
Since your Nest Detects connect to your Nest Guard, make sure your Nest Guard has the latest software. Press and hold the 2 button on your Nest Guard until you get a "Release to check for updates" message.
5. Check your Nest Detect battery
Push the button on your Nest Detect.
Your Nest Detect will light up to let you know its status. If everything is okay, your Nest Detect will glow blue or green.
If Nest Detect’s light is yellow, you can use the Nest app to check the battery level the last time your Nest Detect was connected.
If the battery level is low, replace the battery.
6. Restart your Nest Detect
Restart your Nest Detect to refresh its connection.
Important: Don't reset your Nest Detect to factory defaults or you’ll have to remove it from your account and add it back again on the Nest app.
After you restart your Detect, check if your Detect is back online on the Nest app. Frequent disconnects are a sign of a poor connection between your Detect and your Guard or Connect.
7. Check the connection range
An easy way to tell if you have a range issue is to set your system to Off , unplug Nest Guard, and then temporarily plug it into an outlet closer to the Nest Detect that’s having the problem.
Wait a few minutes.
If your Nest Detect comes back online after you move Nest Guard closer, it means the spot you’ve chosen for your Nest Detect may have been too far away from Nest Guard’s original location.
Note: If you have a Nest Hub Max set up nearby, your Nest Detect may have used it to connect to Wi-Fi. Beginning in late July 2022, Nest Hub Max can no longer be used as a bridge for your Nest Detect to access Wi-Fi. You can use Nest Guard or Nest Connect instead. Learn more about this update.
There are a few ways to fix this issue. Choose the one that works best for you:
- Move your Nest Guard back to its original spot, uninstall Nest Detect, and then install it somewhere closer to Guard.
- Keep your Nest Guard in its new location. Just make sure that none of your other Nest Detects go offline after you move Nest Guard.
- If you want to use your Nest Guard in its original location and keep your Nest Detect where it is, you can always purchase a Nest Connect to help extend the range of your system.
Note: Make sure your Nest Detect is installed correctly and attached to the backplate. If you’re not sure, try to remove it from the backplate and then reattach it.
8. Look for sources of interference
Even if your Nest Detect is in range of your Nest Guard, something may be interfering with the connection.
Draw an imaginary straight line between your Nest Detect and Nest Guard. Any time the line between your Nest Detect and Nest Guard is blocked by something, it might cause interference.
Thick walls, furniture, appliances, and other electronics can reduce the range your Nest Detect can connect to your Nest Guard.
Try to install your Nest Detect closer to your Nest Guard.
You can also move your Nest Guard closer so it can connect to your Nest Detect, or purchase a Nest Connect to extend the range of your Nest Guard.
9. Reset your Nest Detect to factory defaults
After you’ve ruled out interference, try to reset your Nest Detect to factory defaults. You’ll need to add your Nest Detect back to your account on the Nest app after.
Important: You should double check the previous troubleshooting steps before resetting your Nest Detect. When you reset your Nest Detect, it will remove all of your settings and history.
If none of the troubleshooting steps mentioned above works for you, you can purchase a Nest Connect to help extend the range of your alarm system throughout your home.