Nest Thermostat Won’t Connect to App? Try These 14 Fixes

Can't Add Second Nest Thermostat to App

Can You Have Multiple Nest Thermostats in One App?

If you want to save money on your energy bills, a smart thermostat is one of the finest investments. Fortunately, smart thermostats such as the Google Nest can help you reduce these costs while still maintaining the appropriate temperature in your flat.

As a general rule, you shouldn’t have any problems integrating the Nest into your home system; however, if you’re using an older system, it’s a good idea to check the Google Nest compatibility list before purchasing the device.

Nest manufacturers think it is feasible to have many Nest thermostats installed in a single home connected to one app. Using a single Nest app, you can combine all of your Nest devices. A variety of benefits may get gained by installing numerous Nest thermostats around your home. However, there are still restrictions on the number of Nest thermostats that may be used simultaneously by a single user.

If you are utilizing fewer than ten thermostats in a single area, you should not have any problems, in theory at least. However, surpassing the Google-imposed restriction will result in some difficulties regarding temperature regulation. Your sensors may begin to malfunction, and you will no longer be able to set everything using a single app.

Why Can’t I Add a Second Nest Thermostat to the Nest App?

Those new to the realm of home automation may not be familiar with setting up smart home devices and connecting them to the appropriate applications on your smartphone or tablet. While home automation is a thrilling prospect, it can be frustrating when difficulties arise.

A weak or non-existent Wi-Fi connection, missing a step in the initial setup process, incorrect router settings, an outdated Nest app, or a malfunctioning thermostat are all possible reasons you cannot connect the second Nest to the Nest app.

1. Improper Setup

Installing and configuring your second Nest Thermostat to communicate with the Nest app isn’t difficult, but it might be perplexing if you aren’t familiar with the procedure. If you overlook any stages during the setup procedure, the second thermostat will not be able to connect to the app effectively.

To guarantee that the Nest Thermostat connects, you must carefully follow all of the instructions provided with the device and inside the Nest app on your smartphone.

2. Wi-Fi Router Settings Are Blocking The Nest

In some cases, a Nest app is prevented from working by a firewall or parental restrictions configured on the network. Parents frequently use parental controls on their Wi-Fi network to guarantee that their children do not interfere with the thermostat.

It’s unfortunate that if the Nest Thermostat’s settings aren’t properly set up, it might prohibit the device from functioning at all.

3. Out-of-date Nest App

If your app is not up to date, connection issues may emerge which can stop you from adding a second thermostat to the app. When developers issue an update for an app, they frequently correct problems that might cause you to experience difficulties while using the app.

If you choose to disregard such updates, the Nest app will not function to its full potential. It implies that the longer you use the outdated version, the more likely you may encounter errors and difficulties. One of these issues is the inability to connect with your smart home appliances.

4. Thermostat Issues

Smart home gadgets, such as the Nest Thermostat, are prone to freezing or glitching from time to time. There are several advantages to restarting a device, including the ability to clean away any faults or problems and resolve connectivity issues. If you fail to add a second nest thermostat to the nest app, try rebooting your thermostat.

5. Poor Wi-Fi Connection

Wi-Fi is required for the operation of smart home gadgets. They communicate signals through Wi-Fi, allowing the device to function in conjunction with other hubs, such as Google Home.

Because of a weak or broken connection, your Nest Thermostat will be unable to communicate with your iOS or Android mobile device. One of the most typical issues that Nest Thermostats encounter is when they refuse to connect.

How to Fix Can’t Add Second Nest Thermostat to App

In addition to other things, the first advantage of having numerous thermostats in your house is that you may design separate zones according to a specific region in your home and regulate the temperature of that zone without changing the general temperature settings in your home.

Suppose some family members like to have the temperature in their room lowered while others prefer the temperature to be raised. In that case, you may work around this issue by creating a separate zone for their room and lowering their temperature.

In a similar vein, if you live in a property with numerous floors or share a house with someone else, you should consider getting a home security system.

Then, by installing multiple Nest thermostats around your home, you will be able to adjust the temperature of different floors depending on the preferences of the people living in your home.

Additionally, you may lower the temperature of a specific portion of your home to reduce the cost of your energy bill. If you have a second nest thermostat that you are failing to add to the app, you can:

1. Redo the Setup

To fix your second Nest not connecting to the app, redo the setup. Following these instructions to the letter should result in your house’s successful installation of your second Nest thermostat. Double-check that you’ve selected your house as the destination in the menu tab.

If you do not do so, you may experience difficulties connecting. After that, you’ll want to connect your thermostat to the app. To complete this stage, you’ll need the entrance key.

This information will be presented on your Nest thermostat during the setup procedure. Make sure you type that key accurately, as any mistakes will prevent you from correctly configuring your new device. To set up the second Nest:

  1. Select the menu option in the top left corner of the Nest app.
  2. Choose home.
  3. Locate the Settings option on the right-hand side of the screen.
  4. Add a new product by selecting Add Product.

2. Reset Nest

Resetting the Nest could be what you need to connect it. Factory reset the Nest Thermostat so that it will forget all of your personal information, and you can enter new data into the device. Here’s how to go about it:

  1. When you press the thermostat ring on the Nest Thermostat, you will be able to access the Quick View menu, allowing you to change the device’s settings.
  2. Locate and pick the Settings option from the menu bar. You will be completing the factory reset procedure at this point.
  3. Navigate to the Reset menu option and select Reset All Settings to ensure that everything on the device is restored to its default settings. As a result, all of your personal information is erased. The new homeowner will be able to take over the Nest Thermostat once you have handed it to them when you sold the property, including the thermostat.

3. Adjusting Router Settings

Some people have reported that their Wi-Fi connection is not strong enough to link their Nest Thermostat successfully to their smartphone app. The most effective method of preventing this is to reboot your Wi-Fi router.

Unplug it from the wall for around 30 seconds. Reconnect your router and allow it to reset for a few minutes before using it again. Try connecting to the app once again when it has been restarted and is up and running.

In addition, before attempting to install a second Nest Thermostat, make sure all parental controls are turned off. The Nest app has the potential to cause problems with your Wi-Fi firewall.

It implies that it may be identified as spam or a security issue, although it is none of these things. Visit the website of your Wi-Fi provider, and you should be able to make the necessary changes. If you cannot complete the transaction online, contact your service provider to see if they can make an exception.

You don’t want to remove your firewall protection from your system entirely. Just provide your Nest Thermometer app permission to overcome any security measures.

4. Update Nest Firmware

If your Nest products are connected to a reliable internet connection, they should be able to update their software automatically.

Without your involvement, your thermostat may install the update without your intervention. You may also manually upgrade the software on your thermostat if you so want. The Version Update box allows you to make changes to your current version.

You may update the system software on your Nest thermostat by selecting Settings > Software > Update from the Settings button on the remote control.

A thermostat update will typically take a few hours, depending on the strength of your Wi-Fi connection and the number of updates you have scheduled. A reset of your thermostat is recommended when the update takes more than 15 minutes to complete.

5. Update the App

Depending on your device’s operating system and browser, you can quickly determine whether or not you have the most recent version of the app by visiting the Apple App Store or Google Play Store. You’ll be able to update the app while you’re there if it’s necessary.

If your applications do not automatically update, you may adjust this in the settings menu of your device. It allows your apps to automatically update when connected to Wi-Fi, rather than forcing you to do it manually.

There are various ways to make your smartphone update particular apps on its own without your intervention. It is far handier for individuals who don’t want to worry about updates being delivered at inconvenient times.

After completing the update, be sure that you have completely closed and reopened the application for the update to take effect.

6. Reset WWN, Then Add SSID and Password Manually to Each Device

To begin, uninstall your thermostat from the Nest app. Choose your thermostat on the Nest app’s home screen and select Settings. Remove the thermostat by scrolling down to the bottom of the page.

  1. On your thermostat, go to Settings, then Reset, and then WWN Connection.
  2. Select Reset and confirm that you wish to do a reset by pressing Enter. Your thermostat will automatically restart.
  3. Select Network from the Settings menu and reconnect your thermostat to Wi-Fi.
  4. Navigate to Settings, then to the Nest app, and enter the entrance key.
  5. Restart the Nest thermostat installation process from the beginning. On the Nest app’s home screen, go to Settings and then Add product to add a new product. You may move ahead to the enter key stage by selecting your thermostat and installing it. Input the enter key that appears on the thermostat’s display screen.

7. Restarting the Thermostat

It is a straightforward remedy, but it is occasionally required. When attempting to link your second thermostat to your Nest device, restarting the device may be necessary.

These steps will force your device to restart, allowing it to clean away whatever progress it has made and begin the installation process from the very beginning again.

From here, you may try reconnecting it to the app once more. If you haven’t previously, you should consider resetting your device using the following simple steps:

  1. The menu may get accessed by tapping the right side of the thermostat.
  2. Go to the Settings menu.
  3. Select Restart, followed by Yes.

8. Create A New Home

Nest allows you to have a total of two residences on your account. You can be the owner of one or both of the properties on your account. If you cannot add your second Nest to the app, you will need to create a new one. To accomplish this, follow these steps:

  1. Access the menu, which may get found in the top left corner of the app’s home screen.
  2. Then, in the upper right corner, select the option to “Add.”
  3. Continue by pressing the Continue button.
  4. Give your house a unique name.
  5. Input the address of your new home.
  6. Choose whether or not you want to utilize your phone’s location to assist with Residence/Away Assist for your new home.

9. Restart Router

When you restart your router, your internet connection is automatically reset. Every router is unique in its way. You may need to refer to the user manual for your router for specific information on how to restart your router. To restart your router:

  1. Unplug the power wires from your modem and router. Make sure that all of the lights on your router are off.
  2. Wait for a few seconds, then reconnect your router to the network.
  3. Restarting your router should take care of the problem. Keep waiting for several minutes or until the power and connection lights are stable.

10. Make Sure Your Internet Service is Working

Although this appears to be a straightforward remedy, it is critical to confirm that your Wi-Fi functions correctly. You will not be able to connect to your Nest thermostat until you have it.

For this reason, test your Wi-Fi connection before attempting to connect your thermostat. Before using the Nest app, make sure your smartphone or other device is connected to the internet through Wi-Fi.

Another typical problem is that the Nest app may not be functioning correctly. Like all other applications, Nest’s app occasionally goes offline for a short time. It is to be expected to address concerns with any software, whether due to an error or on purpose. It might be tough to determine whether an application is not functioning correctly or if there is another problem.

11. Skipped Steps During Initial Setup

Making sure that your wiring is compatible should be your first step, which you or a loved one should have done before purchasing the item in the first place should be your second step.

On the other hand, Nest includes a tool that allows you to check for compatibility on your own. If your present thermostat cover is made of “thick wires with wire nuts,” this will not work.

For the most part, house upgrades are uncomplicated; you remove your old thermostat, attach the new base, connect wires, and attach your new Nest to complete the process. Nest makes it simple to connect with a specialist in your region who can assist you. Please refer to Nest’s step-by-step instructions if you have any more queries or concerns.

Following the installation and activation of your Nest device, you’ll need to connect it to your home’s Wi-Fi network. From there, it’s simply like any other thermostat in terms of operation. Nest will learn about your routines and make the necessary modifications on its own within a few days.

While installing the second Nest, it is possible to skip a step during the initial setup. Try to go over the steps and see what action you could have possibly missed. Try to go over the initial stages and see if you can connect the second Nest.

12. Replace

Most people can complete the installation of a Google Nest thermostat themselves in 20-30 minutes in their own houses. A Nest Thermostat should endure for at least ten years before being replaced.

If you’re currently experiencing problems with your Nest, you can replace it with the more reliable model (view on Amazon). However, because the product is still in its early stages, there isn’t sufficient evidence to back up this claim just yet. The product, on the other hand, is quite nicely constructed.

If you’re replacing, or even if you’re keeping your Nest Thermostat but are essentially just moving it to a different house, you’ll need to reset it because the Wi-Fi network will be other. More importantly, your new home’s cooling and heating systems may not be the same as your Nest Thermostat initially set up to do in your old house.

However, resetting your Nest Thermostat and removing it from the wall is a straightforward process that takes only a few minutes. If you fail to connect your second nest thermostat replacing it is easy.

13. Repair

The Nest thermostat is one of the most popular smart thermostats available today. There’s a valid explanation because it learns your preferred temperature settings and creates an energy-efficient schedule to accommodate them.

If you’ve attempted to troubleshoot your Nest thermostat on your own but have been unsuccessful, an intelligent thermostat expert can help. There are several people you can get in touch with to come and look at your Nest. A quick search online will show you people in your area who can fix your net thermostat.

14. Contact Nest

If you are still unable to connect your second Nest after attempting all of the suggested repairs, you may need to contact customer support for more assistance. Luckily, Nest’s customer service is reliable, and there are forums dedicated to people who face problems with their nests. You are likely to get a solution for your Nest from those platforms.

When contacting Nest customer support, please be as specific as possible in your description of the problem you are experiencing while attempting to add the second Nest to your home. You can call customer service or visit the Nest customer services official social media pages.

The Conclusion

The Google Nest Thermostat is a smart programmable thermostat that allows you to adjust the temperature and humidity of your house from anywhere in the world with a single tap on your smartphone. Choosing to utilize the Nest Thermostat in your home does not limit you to using only one device simultaneously.

Multiple Google Nest thermostats installed in the same home will effectively communicate to maintain constant temperature tracking and energy-saving levels. If you encounter any problems while setting up your second Nest, the fixes in this article should help you. If they don’t, your Nest could get broken.

David Johnson is a freelance writer with 9 years of experience writing for Techzillo and other established tech outlets like iMore. His focus and key interests are Apple and accessibility as well as consumer technology in general. Read our Editorial Guidlines and Fact Checking process.


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