Change Your WiFi Network 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 gear icon, then select Wi-Fi. The app will show you the network your Chromecast is currently connected to and let you choose a different one from the available networks in range. You'll need to enter the password for the new network, and the device will reconnect within a minute or two.

This method works whether you're switching to a different network in your home, connecting to a guest network, or moving your Chromecast to a different room with stronger signal. The Google Home app handles all the technical steps for you—you don't need to restart anything or manually reset the device.

Key Takeaways

  • Open the Google Home app, tap your Chromecast device, select the settings gear, and choose 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 change.
  • The Chromecast will reconnect to the new network within one to two minutes; you do not need to restart it manually.
  • If the app cannot find your Chromecast or the change fails, restart both your Chromecast and your router by unplugging them for 30 seconds.
  • A factory reset through the Google Home app is the last resort if the device will not connect to any network after multiple attempts.

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

If you open the Google Home app and your Chromecast does not appear in the device list, the app and the device are not on the same WiFi network. This is the most common reason the app cannot find your Chromecast to change its settings. Make sure your phone or tablet is connected to the same WiFi network the Chromecast is currently using, then refresh the app by closing it completely and opening it again.

If your Chromecast is already offline or you do not know which network it is on, you will need to reset it first. Unplug the Chromecast from power for 30 seconds, then plug it back in. While it is restarting, hold down the reset button on the back or bottom of the device (you may need a paperclip or pen to reach it) for about 15 seconds. The light will blink orange, then white—this means the device is in setup mode. Now open the Google Home app, tap the plus icon to add a device, and follow the setup steps to connect it to your desired WiFi network.

Switching Networks Without Losing Your Settings

When you change the WiFi network through the Google Home app, your Chromecast keeps all its settings—the apps you have installed, your Google account, and any custom names you gave the device. The only thing that changes is which WiFi network it connects to. This is different from a factory reset, which erases everything.

If you are moving your Chromecast to a new location in your home or to a different room, changing the WiFi network through the app is the right choice. Your streaming apps, casting history, and any linked accounts will all remain intact. The device will straightforward start using the new network's connection instead of the old one.

Troubleshooting When the Network Change Fails

If you enter the correct password but the Chromecast will not connect to the new network, start by restarting both devices. Unplug your WiFi router and your Chromecast from power at the same time, wait 30 seconds, then plug the router back in first. Wait for it to fully restart (usually one to two minutes), then plug in the Chromecast. Try the network change again through the Google Home app.

If the Chromecast still will not connect after a restart, the new network may have settings that block the device. Some routers have a feature that isolates guest networks from other devices, or they may require devices to use a specific WiFi band (2.4 GHz versus 5 GHz). Check your router's settings to make sure guest isolation is off if you are connecting to a guest network, and try forcing the Chromecast to use the 2.4 GHz band if your router broadcasts both bands. If you are unsure how to change these settings, contact your internet provider or router manufacturer for help.

When to Factory Reset Your Chromecast

A factory reset should be your last step, only after restarting both devices and trying the network change multiple times. A reset erases everything on the Chromecast—your Google account, installed apps, and all settings—and returns it to the state it was in when new. You will have to set it up again from scratch.

To factory reset through the Google Home app, open the app, tap your Chromecast device, select the settings gear, scroll down to Device information, and tap Factory reset. Confirm the action, and the device will restart and clear all data. Once it finishes, you can set it up again and connect it to your desired WiFi network. If you cannot access the app because the device is offline, you can also reset it manually by holding the reset button on the back of the device for about 15 seconds until the light blinks orange.

Connecting to a 5 GHz Network

Most Chromecast models work on both 2.4 GHz and 5 GHz WiFi bands, but some older models only support 2.4 GHz. If your router broadcasts both bands under the same network name, the Chromecast may automatically choose the 2.4 GHz band even if you are close to the router. If you want to force it to use 5 GHz for faster speeds, you can separate the bands in your router settings so they have different names, then connect your Chromecast to the 5 GHz network specifically through the Google Home app.

Check your Chromecast model number (found on the device itself or in the Google Home app under Device information) to confirm it supports 5 GHz before you make this change. If your model only supports 2.4 GHz, you will not see the 5 GHz network as an option in the app, and there is no way to force it to connect to a band it does not support.

Frequently Asked Questions

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

No. You can change the network through the Google Home app without unplugging anything. The device will stay powered on and straightforward switch to the new network. Unplugging is only necessary if the app cannot find your device or the network change fails after multiple attempts.

Will changing the WiFi network erase my apps and settings?

No. Changing the network through the Google Home app keeps all your apps, your Google account, and your device settings intact. Only a factory reset erases everything, and that is a separate action you have to choose deliberately.

What if I do not know the password for the new WiFi network?

You will need the password before you can complete the network change. If you do not know it, contact the person who set up the network or check your router's documentation. Some routers have the password printed on a sticker on the device itself.

Can I connect my Chromecast to a mobile hotspot instead of WiFi?

Yes. Mobile hotspots appear in the list of available networks in the Google Home app just like any other WiFi network. Select your hotspot's name, enter its password, and the Chromecast will connect. Keep in mind that streaming video uses significant data, so monitor your mobile plan's usage if you use this method regularly.

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

Usually one to two minutes. The device will show a connecting status in the Google Home app. If it takes longer than five minutes, the connection likely failed—try restarting both the Chromecast and your router and attempt the change again.