Change Your WiFi Network in the Google Home App

The fastest way to switch your Chromecast to a different WiFi 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 gear icon, then select "WiFi" and choose your new network from the available list. Enter the password if prompted, and your Chromecast will reconnect within 30 seconds.

This method works whether you're moving to a different network in your home, connecting to a guest network, or switching to a new router entirely. The device stays in the same room—you're just telling it which network to use.

Key Takeaways

  • Open the Google Home app, tap your Chromecast's settings gear, and select WiFi to see available networks and switch to a new one.
  • You need the password for the new WiFi network before you start, unless it's an open network with no password.
  • Reconnection takes about 30 seconds; if it fails, restart your Chromecast by unplugging it for 10 seconds and plugging it back in.
  • If you can't see your network in the list, make sure your Chromecast and phone are both in range of the router.
  • Changing networks does not erase any apps, settings, or casting history on your Chromecast.

Step-by-Step Instructions for the Google Home App

Start by opening the Google Home app on your phone or tablet. Make sure you're signed into the same Google account you used to set up your Chromecast. Tap the device card for your Chromecast—it will show the device name and a thumbnail image.

In the top right corner of the device card, tap the settings gear icon. Scroll down and tap "WiFi." The app will show a list of available networks in range. Tap the network you want to connect to. If the network requires a password, a text field will appear—type the password exactly as it is (passwords are case-sensitive) and tap "Connect."

Your Chromecast will attempt to join the network. A confirmation message will appear in the app once the connection succeeds. If you see an error message, double-check the password and try again. The entire process usually takes 20 to 30 seconds.

What to Do If Your Network Doesn't Appear in the List

If you don't see your WiFi network in the available list, the most common reason is that your Chromecast is out of range. Move your phone closer to the Chromecast and refresh the network list by closing and reopening the WiFi settings screen. If your router is far away, move the Chromecast closer to it temporarily while you change the network.

Another possibility is that your router is broadcasting on the 5 GHz band only. Older Chromecast models support only 2.4 GHz networks. Check your router's settings to see which bands it uses. If it's 5 GHz only, you'll need to either enable the 2.4 GHz band on your router or use the manual entry option in the Google Home app to type in your network name directly.

To manually enter your network name, look for an option in the WiFi settings that says "Add network" or "Other network." Tap it, type your network name exactly as it appears, enter the password, and tap Connect.

Troubleshooting When the Connection Fails

If your Chromecast connects briefly and then disconnects, or if you see an error message during connection, restart the device. Unplug your Chromecast from power, wait 10 seconds, and plug it back in. Once the light on the device stops blinking, try changing the network again through the Google Home app.

If the password is incorrect, you'll see an error message when ready. Go back to your router or check your WiFi settings on another device to confirm the correct password. Passwords are case-sensitive, so "MyPassword" is different from "mypassword."

If your Chromecast still won't connect after a restart, try restarting your router as well. Unplug the router for 10 seconds, plug it back in, wait two minutes for it to fully boot, and then attempt the connection again from the Google Home app.

Changing Networks Without the Google Home App

If you don't have the Google Home app installed, you can set up your Chromecast on a new network using a computer instead. Visit chromecast.google.com/setup in a web browser on a computer connected to the same network as your Chromecast. Follow the on-screen prompts to select your new WiFi network and enter the password.

This method is slower than using the app, but it works if your phone isn't available. You'll need to be on a computer that's already connected to your home network or the network you want your Chromecast to join.

What Happens to Your Settings and Apps After Changing Networks

Changing your Chromecast's WiFi network does not erase any of your settings, apps, or casting history. Your device will retain all the apps you've installed, your Google account connection, and any custom settings you've configured. The only thing that changes is which network the device uses to connect to the internet.

If you were casting something when you switched networks, that cast session will stop. Once the Chromecast is connected to the new network, you can cast again from your phone or computer as usual.

Frequently Asked Questions

Do I need to unplug my Chromecast to change networks?

No. You can change networks while your Chromecast is plugged in and powered on. straightforward use the Google Home app to select a new network. Unplugging is only necessary if the connection fails and you need to restart the device.

Can I connect my Chromecast to a 5 GHz WiFi network?

Newer Chromecast models (Chromecast with Google TV and recent generations) support both 2.4 GHz and 5 GHz networks. Older models support only 2.4 GHz. Check your device's specifications or try selecting your 5 GHz network in the app—if it doesn't appear, your model doesn't support it.

What if I forgot my WiFi password?

You'll need to reset your WiFi password through your router's settings or your internet provider's website before you can connect your Chromecast. Once you've reset the password, use the Google Home app to enter the new password on your Chromecast.

Will changing networks affect my ability to cast from my phone?

Your phone and Chromecast must be on the same WiFi network to cast. If you move your Chromecast to a different network and your phone stays on the old one, casting won't work until your phone connects to the same network as the Chromecast.

Can I connect my Chromecast to a hidden WiFi network?

Yes. Use the "Add network" or "Other network" option in the Google Home app's WiFi settings, type your hidden network's name exactly, enter the password, and tap Connect. Your Chromecast will remember this network for future connections.