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 "WiFi" or "Network settings." The app will show you the network it's currently on and let you choose a different one from the available networks in range. You'll need to enter the password for the new network if it's password-protected.

The entire process takes about two minutes. Your Chromecast will disconnect from the old network and reconnect to the new one. During this time, you won't be able to cast to it—wait about 30 seconds after you see the confirmation message before trying to cast again.

If the Google Home app doesn't show your Chromecast in the device list, make sure your phone is on the same WiFi network as the Chromecast, or use Bluetooth to connect if your phone supports it. Older Chromecast models may require you to be on the same network to see them in the app.

Key Takeaways

  • Open Google Home, tap your Chromecast's settings icon, and select WiFi or Network settings to change networks.
  • You must enter the password for the new network if it requires one.
  • Your Chromecast will be offline for about 30 seconds while it switches networks.
  • If your Chromecast doesn't appear in the Google Home app, make sure your phone is on the same network or connected via Bluetooth.
  • Some older Chromecast models may need you to factory reset and set up again if they won't connect to a new network.

What to Do If Your Chromecast Won't Show the New Network

If the network you want to join doesn't appear in the list, the Chromecast may be out of range or the network name (SSID) may be hidden. Move the Chromecast closer to your router and try again. If your network is hidden, you can manually enter the network name and password in the Google Home app instead of selecting it from the list—look for an option to "Add network manually" or "Enter network name."

If you still don't see your network after moving closer to the router, restart your Chromecast by unplugging it for 10 seconds, then plugging it back in. Wait for the light to stop blinking before opening the Google Home app again.

Changing Networks on a Chromecast Connected to a Guest Network

If your Chromecast is currently on a guest network and you want to move it to your main network, follow the same steps in the Google Home app. The process is identical—just select the main network from the list and enter its password.

Keep in mind that guest networks often have different security settings or bandwidth limits. If you notice your Chromecast casting slowly or disconnecting frequently after moving to a guest network, switching back to your main network may improve performance.

When You Need to Factory Reset Your Chromecast

If your Chromecast won't connect to any network after you've tried changing the WiFi, or if it keeps disconnecting when ready after connecting, a factory reset may be necessary. To reset it, unplug the device, then hold down the reset button (a small recessed button on the back or bottom) while plugging it back in. Keep holding for about 10 to 15 seconds until the light starts flashing orange, then release.

After a factory reset, your Chromecast will be wiped of all settings and network information. You'll need to set it up again from scratch using the Google Home app, which will walk you through connecting to your WiFi and linking it to your Google account. This usually takes about five minutes.

Troubleshooting a Chromecast That Keeps Disconnecting

If your Chromecast connects to the new network but drops the connection every few minutes, the problem is usually weak signal or interference. Try moving your router closer to the Chromecast, or move the Chromecast away from other electronics like microwaves, cordless phones, or baby monitors—these can interfere with WiFi on the 2.4 GHz band.

If you have a dual-band router (one that broadcasts both 2.4 GHz and 5 GHz), try connecting your Chromecast to the 2.4 GHz network instead of the 5 GHz network. Older Chromecast models work better on 2.4 GHz, and 5 GHz has shorter range. You can usually separate these networks in your router settings so they have different names, making it easier to choose the right one in the Google Home app.

Changing WiFi on Multiple Chromecasts at Once

If you have more than one Chromecast in your home, you can change the network for each one individually through the Google Home app. Open the app, scroll through your device list, and tap the settings for each Chromecast you want to update. You'll need to do this one device at a time—there's no option to change multiple devices' networks in a single step.

If all your Chromecasts are on the same old network and you're switching your entire home to a new network, you can speed up the process by changing them one after another. Just remember to wait about 30 seconds after each one reconnects before moving to the next device.

Frequently Asked Questions

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

No. You can change the network through the Google Home app without unplugging it. The Chromecast will disconnect from the old network and reconnect to the new one automatically. You only need to unplug it if you're doing a factory reset or if it's not responding to the app.

Will changing WiFi erase my Chromecast settings or saved apps?

No. Changing the WiFi network keeps all your settings, linked accounts, and preferences intact. Only a factory reset will erase everything. After the network change, your Chromecast will work exactly as it did before, just on a different network.

What if I don't have the WiFi password for the new network?

You'll need the password to connect your Chromecast to a password-protected network. If you've forgotten it, you can usually find it in your router's settings by logging in on a computer or phone. Check your router's manual or the manufacturer's website for instructions on how to view the WiFi password.

Can I change my Chromecast's WiFi from a different room?

Yes, as long as your phone is on the same WiFi network as the Chromecast (or connected via Bluetooth on newer models), you can open the Google Home app from anywhere and change the network. The app doesn't require you to be in the same room.

Why does my Chromecast keep forgetting the WiFi network?

This usually means the signal is too weak or there's interference. Try moving the Chromecast closer to your router, or check if other devices nearby are causing interference. If the problem continues, restart your router by unplugging it for 30 seconds, then plug it back in and reconnect your Chromecast.