Change Your WiFi in the Google Home App

The fastest way to change your Chromecast's 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 icon (gear symbol), scroll down to "Wi-Fi", and select "Forget this network". The device will then prompt you to connect to a new network. Choose your new WiFi name from the list and enter the password.

This method works whether you are switching to a different network in your home, moving to a new location, or changing from a 2.4 GHz band to a 5 GHz band on the same router. The process takes about two minutes and does not require you to unplug the device.

If the Google Home app does not show your Chromecast, make sure your phone is connected to the same WiFi network the Chromecast is currently on. Once you forget the network, the Chromecast will no longer be able to reach the internet until you complete the setup on a new network.

Key Takeaways

  • Open the Google Home app, find your Chromecast, tap the settings icon, and select "Wi-Fi" to forget your current network and connect to a new one.
  • You must know the password for the new WiFi network before you start, because the Chromecast cannot connect without it.
  • If your phone loses connection to the Chromecast during setup, restart the Chromecast by unplugging it for 30 seconds and plugging it back in.
  • Some Chromecast models can connect to both 2.4 GHz and 5 GHz bands, but you may need to choose one band at a time during setup.

What to Do If the Google Home App Does Not Show Your Device

If your Chromecast does not appear in the Google Home app, the device and your phone are likely on different networks. Move your phone to the same WiFi network your Chromecast is currently using, wait 10 seconds, and refresh the app by pulling down from the top of the screen.

If the Chromecast still does not show up, restart it by unplugging the power cable for 30 seconds. Plug it back in and wait for the LED light to stop blinking. Then try refreshing the Google Home app again. If you have multiple Chromecast devices, make sure you are tapping the correct one before changing the network.

Changing WiFi Without the Google Home App

If you do not have the Google Home app installed, you can set up your Chromecast on a new network using a computer instead. Visit chromecast.com/setup in a web browser on a computer that is connected to the same WiFi network as your Chromecast. The website will walk you through finding your device and connecting it to a new network.

This method requires your computer to be on the Chromecast's current network first. If you have already forgotten the old network on the Chromecast, you will need to factory reset the device and set it up from the beginning, which takes about 10 minutes.

Factory Reset If You Cannot Remember the Old Password

If you no longer have access to the WiFi network your Chromecast is connected to — for example, if you moved and do not remember the old network password — you will need to factory reset the device. Locate the small reset button on the back or bottom of your Chromecast (it is usually recessed). Use a paperclip or the end of a pen to press and hold the button for about 15 seconds until the LED light turns white and begins blinking.

Once the light is blinking, the Chromecast has been reset to factory settings and will no longer be connected to any network. Open the Google Home app on your phone, tap the plus icon to add a device, and follow the setup steps to connect your Chromecast to your new WiFi network. This process takes about five minutes.

Switching Between 2.4 GHz and 5 GHz Networks

If your router broadcasts both a 2.4 GHz and a 5 GHz network, your Chromecast can connect to either one, but not both at the same time. The 5 GHz band is faster but has a shorter range, while 2.4 GHz is slower but reaches farther through walls. Most Chromecast devices default to whichever band your phone is on during setup.

To switch bands after setup, open the Google Home app, go to your Chromecast's settings, select "Wi-Fi", and forget the current network. When you reconnect, your phone will show both the 2.4 GHz and 5 GHz versions of your network name (they may have different suffixes like "-2.4" or "-5G"). Choose the band you want and enter the password.

If your router uses the same name and password for both bands, the Chromecast may automatically switch between them. Check your router's settings if you want to force it to stay on one band.

Troubleshooting Connection Problems After Changing Networks

If your Chromecast connects to the new network but then loses connection or will not play content, the problem is usually a weak signal or an incorrect password. Move the Chromecast closer to your router and try again. If the signal is still weak, consider moving your router to a more central location or using a WiFi extender.

If the password was entered incorrectly, the Chromecast will appear in the Google Home app but will show a "No Internet" status. Go back to the Wi-Fi settings, forget the network, and reconnect with the correct password. Some routers require you to wait a few minutes before a device can reconnect after being forgotten, so if you get an error, wait and try again.

Frequently Asked Questions

Do I need to unplug my Chromecast to change the WiFi?

No. You can change the WiFi network through the Google Home app without unplugging the device. Unplugging is only necessary if the Chromecast stops responding or if you need to factory reset it.

Will changing the WiFi erase my apps or settings?

No. Changing the WiFi network does not erase any apps, saved content, or other settings on your Chromecast. Only the network connection is changed.

What if I do not know my new WiFi password?

You will need the password to complete the setup. Check your router's label (usually on the bottom or back), log into your router's admin page through a web browser, or contact your internet provider. Some routers allow you to reset the password by pressing a button on the device itself.

Can I connect my Chromecast to a guest network?

Yes, Chromecast can connect to most guest networks as long as you have the password. Some guest networks block casting or have restrictions that prevent the Chromecast from working properly. If casting does not work on a guest network, contact the network owner to check the settings.

How long does it take to change the WiFi network?

The process usually takes two to five minutes from start to finish. If you encounter connection problems, troubleshooting may add another five to ten minutes.