Change your Chromecast's WiFi in the Google Home app

To change which WiFi network your Chromecast connects to, open the Google Home app on your phone or tablet, find your Chromecast device in the list, tap the settings icon (gear), and select Wi-Fi. The app will scan for available networks and let you choose a new one and enter the password. The Chromecast will disconnect from the old network and reconnect to the new one within a minute or two.

This is the fastest way if your Chromecast is already set up and working. You do not need to reset the device or start from scratch—just switch networks the same way you would on a phone.

Key Takeaways

  • Open Google Home, tap your Chromecast's settings icon, and select Wi-Fi to see available networks and switch to a new one.
  • You will need the password for the new WiFi network before you start.
  • The Chromecast stays connected to your Google account and remembers your apps and settings after the switch.
  • If the Chromecast cannot find your network, move it closer to the router or restart both devices.
  • If you cannot access Google Home or the device is not responding, factory reset the Chromecast and set it up again from the beginning.

What happens to your apps and settings when you switch networks

Your Chromecast is tied to your Google account, not to the WiFi network itself. When you change networks, the device keeps all your apps, your casting history, and any preferences you set up. You will not lose anything or have to reconfigure the device.

The only thing that changes is which network the Chromecast uses to reach the internet. Everything else stays the same.

Troubleshooting: Your Chromecast cannot find the new network

If the new network does not appear in the list when you tap Wi-Fi in Google Home, the Chromecast is probably too far from the router. Move the device closer—within 15 to 20 feet—and try again. Walls, metal objects, and microwaves can block the signal, so moving it to a more open spot often helps.

If the network still does not show up, restart both the Chromecast and your router. Unplug the Chromecast for 10 seconds, plug it back in, and wait for the light to stabilize. Then restart the router by unplugging it for 30 seconds. Try the network switch again after both devices have fully restarted.

Troubleshooting: Wrong password or connection fails

If you enter the password and the Chromecast cannot connect, double-check that you typed it correctly. WiFi passwords are case-sensitive, so uppercase and lowercase letters matter. If you are not sure of the password, check your router's label or log into your router's settings page from a computer or phone.

If the password is correct but the connection still fails, the router may be blocking the Chromecast. Some routers have a guest network or a separate 5 GHz band that the Chromecast cannot reach. Try connecting to the main 2.4 GHz network instead, or ask your internet provider or router manufacturer whether the device is being blocked.

When to factory reset your Chromecast

If Google Home does not recognize your Chromecast, the device is not responding to commands, or you cannot access the Wi-Fi settings at all, a factory reset is usually the next step. Hold down the reset button on the back of the Chromecast for about 15 seconds until the light blinks orange, then release. The device will erase all settings and return to its original state.

After the reset, you will need to set up the Chromecast again from the beginning using the Google Home app. This takes about five minutes and will ask you to choose a WiFi network and sign in to your Google account. You will lose any custom settings or preferences, but your apps and casting history will return once you sign back in.

Switching between 2.4 GHz and 5 GHz networks

Some routers broadcast two separate networks: one at 2.4 GHz (slower but longer range) and one at 5 GHz (faster but shorter range). If your router has both, they usually have different names in the network list. Chromecast works on both, but 2.4 GHz is more reliable if the device is far from the router or if you have walls between them.

If you are having trouble connecting, try switching to the 2.4 GHz network. If your router combines both into one network name, you cannot choose which one the Chromecast uses—the router decides automatically.

Changing networks on a Chromecast you do not own

If the Chromecast belongs to someone else—a roommate, family member, or shared device—you will need their permission to change the WiFi settings. Only the person who set up the device in Google Home can access the Wi-Fi settings. If you need to change the network and the owner is not available, ask them to change it for you, or ask them to give you access to their Google Home app.

If the device is in a shared space and multiple people need to cast to it, make sure everyone knows which network it is connected to so they can cast from the same WiFi.

Frequently Asked Questions

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

No. You can change the network while the device is plugged in and powered on. Just open Google Home, go to the Wi-Fi settings, and select the new network. The Chromecast will handle the switch on its own.

Will changing WiFi networks erase my Google account from the Chromecast?

No. Your Google account stays on the device. Only the network connection changes. All your apps, settings, and casting history remain the same.

What if I do not know my WiFi password?

Check the label on the back or bottom of your router—the password is usually printed there. If you cannot find it, log into your router's settings page from a computer or phone (usually at 192.168.1.1 or 192.168.0.1), or contact your internet provider for help.

Can I connect my Chromecast to a guest WiFi network?

Yes, if the guest network allows it. Some routers block guest networks from seeing other devices on the network, which can prevent casting. If casting does not work on the guest network, try the main network instead, or ask the network owner to adjust the guest network settings.

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

Usually one to two minutes. The device will disconnect from the old network, find the new one, and reconnect. You will see the status update in the Google Home app. If it takes longer than five minutes, restart the Chromecast and try again.