The fastest way to switch Chromecast to a new WiFi network

To change your Chromecast's WiFi, open the Google Home app on your phone, tap the device, go to Settings, select WiFi, and choose a new network from the list. The process takes about two minutes and works the same way whether you are switching to a different router, upgrading your internet plan, or moving to a new home.

You do not need to unplug the Chromecast or reset it to factory settings. The device stays connected to power the whole time, and you can cast to it again as soon as the new network is confirmed.

Key Takeaways

  • Open Google Home, tap your Chromecast, go to Settings, select WiFi, and pick your new network — the whole process takes about two minutes.
  • You need the Google Home app on an Android or iOS phone; you cannot change the WiFi from a computer or directly on the Chromecast itself.
  • If your Chromecast is already offline, you can reconnect it by holding the reset button for 15 seconds and setting it up as new.
  • The Chromecast will forget the old WiFi network automatically once it connects to the new one.
  • If the new network does not appear in the list, make sure your phone is connected to that same network first.

Step-by-step: changing the WiFi in Google Home

Start by opening the Google Home app on your phone. If you do not have it, read it from the Google Play Store (Android) or the App Store (iOS). Make sure you are signed into the same Google account you used to set up the Chromecast.

Tap and hold the Chromecast device tile. A menu will appear at the bottom of the screen. Tap the settings icon (it looks like a gear). Scroll down and tap WiFi. The app will show a list of available networks. Tap the network you want to connect to, enter the password if prompted, and wait for the connection to complete. A checkmark will appear next to the network name once it is connected.

The whole process usually takes 30 seconds to two minutes. Your Chromecast will stay on the same power outlet and will not need to be restarted.

What to do if your Chromecast is already offline

If the Chromecast is no longer connected to any WiFi network, you cannot change it through the Google Home app because the app cannot reach the device. In this case, you need to reset it and set it up again.

Locate the small reset button on the back or bottom of the Chromecast (it is usually recessed so you need a paperclip or similar tool to press it). Hold the button for 15 seconds while the device is plugged in. The light will flash orange, then turn off, then turn back on. Once it turns back on, the Chromecast is reset to factory settings. Open Google Home, tap the plus icon to add a device, and follow the setup steps. When you reach the WiFi screen, select your new network and enter the password.

Troubleshooting: the network does not appear in the list

If you do not see your WiFi network in the list that appears in Google Home, the most common reason is that your phone is not connected to that network yet. Open your phone's WiFi settings, connect to the network manually, then go back to Google Home and try again. The list should refresh within a few seconds.

If the network still does not appear, check that your router is broadcasting the network name (SSID). Some routers have a setting to hide the network name for security. If yours is hidden, you can usually add it manually in Google Home by tapping "Add network" or "Other network" and typing the name and password by hand. The exact wording depends on your version of Google Home, but the option is always near the bottom of the network list.

If your Chromecast connects but then drops the connection repeatedly, the problem is usually distance or interference. Move the Chromecast closer to the router, or move the router away from microwaves, cordless phones, and other devices that use the 2.4 GHz band. If your router supports both 2.4 GHz and 5 GHz networks, try connecting to the 5 GHz band if the Chromecast supports it (most newer models do).

Switching between 2.4 GHz and 5 GHz networks

Many modern routers broadcast two separate networks: one on 2.4 GHz and one on 5 GHz. The 5 GHz band is faster but has shorter range. The 2.4 GHz band is slower but reaches farther. Chromecast devices can connect to either, but not both at the same time.

If your router broadcasts both bands under the same name (a feature called band steering), your Chromecast will pick one automatically. If your router broadcasts them as separate networks with different names (for example, "MyNetwork" and "MyNetwork-5G"), you can choose which one to connect to by selecting it in the WiFi list in Google Home. If you are having trouble with your current connection, try switching to the other band to see if it is more stable.

What happens to your old network after you switch

Once your Chromecast connects to the new WiFi network, it automatically forgets the old one. You do not need to do anything to remove it. If you ever want to connect the Chromecast back to the old network, you just repeat the process and select that network again — the Chromecast will treat it as a new connection.

This also means that if you move the Chromecast to a different room or a different home, you will need to change the WiFi again. The device does not store a list of networks it has used in the past; it only remembers the one it is currently connected to.

Frequently Asked Questions

Can I change the WiFi without the Google Home app?

No. The Chromecast itself does not have a screen or buttons to change WiFi settings. You must use the Google Home app on a phone or tablet. There is no way to do it from a computer or directly on the device.

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

No. Leave it plugged in the whole time. The Chromecast will stay on and will not need to restart. Just open Google Home, select the device, go to WiFi settings, and pick a new network.

What if I forget the password to my new WiFi network?

You will need to find the password before you can connect the Chromecast. Check your router's label (usually on the bottom or back), log into your router's admin panel from a computer, or contact your internet provider. Once you have the password, enter it in Google Home when you select the network.

Will changing the WiFi erase my apps or settings on the Chromecast?

No. Changing the WiFi network does not affect any apps, casting history, or other settings. Everything stays the same; only the network connection changes.

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

Usually 30 seconds to two minutes. If it takes longer than five minutes, the password may be wrong, or the device may be too far from the router. Check the password and try moving the Chromecast closer to the router.