Change Your Chromecast Network in the Google Home App

The fastest way to move your Chromecast to a new Wi-Fi network is through the Google Home app on your phone or tablet. Open the app, find your Chromecast device in the list, tap the settings icon (three dots or a gear), scroll down to "Wi-Fi", and select "Forget This Network". Your Chromecast will restart and show a setup code on your TV screen. In the Google Home app, tap "Set Up Device" and follow the on-screen steps to connect it to your new network.

This method works whether you are switching to a different router, upgrading your internet plan, or moving to a new home. The entire process takes about three to five minutes once you have the app open and your phone is connected to the new network you want to use.

Key Takeaways

  • The Google Home app is the primary tool for changing your Chromecast's network, and you access it by tapping the device settings and selecting "Wi-Fi".
  • Your Chromecast must be powered on and in range of the new Wi-Fi network before you start the process.
  • After you forget the old network, your Chromecast displays a setup code on your TV that you use to confirm the connection in the Google Home app.
  • If the Google Home app method does not work, you can factory reset your Chromecast by holding the reset button for 15 seconds, then set it up as new.

What You Need Before You Start

Have your new Wi-Fi network name (SSID) and password ready before you begin. Your Chromecast must be plugged in and powered on, and it should be within 15 to 20 feet of your new router so it can detect the signal. Your phone or tablet with the Google Home app installed should also be connected to the new network — this is important because the app needs to communicate with your Chromecast on the same network during setup.

If you do not have the Google Home app, read it from the Google Play Store (Android) or the App Store (iOS). The app is free and works on phones and tablets running Android 6.0 or later, or iOS 12.0 or later.

Step-by-Step: Using the Google Home App

Step 1: Open Google Home and locate your device. Launch the Google Home app and look for your Chromecast in the list of devices. If you have multiple Chromecasts, they will be labeled by room or name — for example, "Living Room" or "Bedroom Chromecast".

Step 2: Open device settings. Tap and hold the device tile, or tap the three-dot menu icon in the top right corner of the device card. Select "Settings" from the menu that appears.

Step 3: Navigate to Wi-Fi settings. Scroll down in the Settings screen until you see "Wi-Fi" or "Network". Tap it to open your network options.

Step 4: Forget the old network. You will see the name of the network your Chromecast is currently connected to. Tap "Forget This Network" or "Forget Network". Your Chromecast will disconnect and restart — this takes about 30 seconds.

Step 5: Watch for the setup code. Once your Chromecast restarts, a four-digit code will appear on your TV screen. This code confirms that you are setting up the correct device.

Step 6: Start setup in the app. In the Google Home app, tap "Set Up Device" or the plus icon to add a new device. Select "Set Up Device" and choose "Set Up New Device".

Step 7: Select your Chromecast. The app will search for nearby devices. When it finds your Chromecast, it will display the four-digit code you saw on your TV. Confirm that the code matches, then tap "Yes".

Step 8: Choose your new network. The app will show a list of available Wi-Fi networks. Select your new network from the list and enter the password. The app will connect your Chromecast to the new network — this usually takes 30 to 60 seconds.

Step 9: Complete setup. Once connected, the app will ask if you want to assign the Chromecast to a room and give it a custom name. You can do this now or skip it and change it later.

What to Do If the App Method Does Not Work

If your Chromecast does not appear in the Google Home app, or if the setup process stalls, try a factory reset. Locate the small reset button on the back or bottom of your Chromecast (it is usually recessed so you need a paperclip or pin to press it). With the device powered on, hold the reset button for 15 seconds until the light on the device turns orange, then release. Your Chromecast will restart and return to factory settings.

After the reset, set up your Chromecast as if it were new. Open the Google Home app, tap the plus icon, select "Set Up Device", and follow the steps to connect it to your new network. This process is identical to the initial setup you did when you first got the device.

If you still cannot connect after a factory reset, check that your router is broadcasting your Wi-Fi network name (SSID). Some routers have a setting to hide the network name — if yours is hidden, you may need to enter the network name manually during setup instead of selecting it from a list.

Troubleshooting Common Connection Problems

Your Chromecast connects but then disconnects. This usually means the device is too far from your router or there is interference from other electronics. Try moving your router closer to the Chromecast, or move the Chromecast away from microwaves, cordless phones, and baby monitors. If your router supports both 2.4 GHz and 5 GHz bands, try connecting to the 2.4 GHz band first — Chromecasts sometimes have better range on 2.4 GHz even though 5 GHz is faster.

The setup code does not match. If the code on your TV does not match the code in the app, you may be setting up a different device. Cancel the setup, unplug your Chromecast for 10 seconds, plug it back in, and wait for the code to appear again. Make sure you are looking at the correct device if you have multiple Chromecasts in your home.

The Google Home app cannot find your Chromecast. Make sure your phone is connected to the same Wi-Fi network as your Chromecast. If your phone is on a different network (for example, a guest network), the app cannot communicate with the device. Also check that your Chromecast is powered on — if the light is off, plug it in and wait 30 seconds for it to boot up.

Changing Networks on a Chromecast with Google TV

If you have a Chromecast with Google TV (the larger device with a remote), you can change the network directly on the device without using the app. Press the Home button on the remote, go to Settings, select "Network & Internet", then "Wi-Fi". Choose "Forget Network", select your new network from the list, enter the password, and confirm. This method is faster if you are already at your TV and do not want to pull out your phone.

You can also use the Google Home app method with Chromecast with Google TV — both approaches work equally well. The on-device method is useful if you have lost access to the Google Home app or prefer to control everything from your remote.

Frequently Asked Questions

Do I lose my saved shows and preferences when I change networks?

No. Changing networks does not erase any of your settings, saved shows, or preferences. Your Chromecast remembers your Google account and all the apps you have installed. Once it connects to the new network, everything will be exactly as you left it.

Can I change networks without using the Google Home app?

Yes, if you have a Chromecast with Google TV, you can change the network using the remote and the on-device settings menu. For standard Chromecast models without a remote, the Google Home app is the primary method, though you can also factory reset the device and set it up as new.

How long does it take for my Chromecast to connect to the new network?

The connection usually takes 30 to 60 seconds after you enter your Wi-Fi password. If it takes longer than two minutes, the password may be incorrect or the device may be out of range. Cancel the setup, move the Chromecast closer to your router, and try again.

What if I forgot my new Wi-Fi password?

You will need to reset your router or access your router settings to find or change your Wi-Fi password. Check your router's manual or the manufacturer's website for instructions. Once you have the correct password, you can proceed with changing your Chromecast's network.

Can I connect my Chromecast to a 5 GHz network instead of 2.4 GHz?

Yes, most Chromecasts support 5 GHz networks. However, 5 GHz has shorter range than 2.4 GHz, so if your Chromecast is far from your router, you may have better results on 2.4 GHz. If your router broadcasts both bands with the same network name, your Chromecast will usually choose the best one automatically.