Change your Chromecast's WiFi network from the Google Home app

The fastest way to move your Chromecast to a new 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 (three dots or a gear), and select "WiFi" or "Network settings". The app will walk you through connecting to your new network — you'll enter the password and confirm the connection.

This method works whether you're switching to a different router in your home, moving to a new house, or changing your internet provider. The Chromecast will forget the old network and connect to the new one. You don't need to reset the device or lose any of your settings.

Key Takeaways

  • The Google Home app is the standard way to change your Chromecast's WiFi network without resetting the device.
  • You need the password for your new WiFi network before you start the process.
  • The Chromecast must be powered on and currently connected to WiFi to change networks through the app.
  • If the app method doesn't work, you can reset the Chromecast and set it up again from scratch on the new network.

What you need before you start

Have your new WiFi network name (SSID) and password ready. If you don't know your password, check your router's label or log into your router's settings page from a computer or phone. You'll also need the Google Home app installed on a phone or tablet that is currently connected to your new WiFi network.

Your Chromecast must be powered on and still connected to your old WiFi network. If it's already unplugged or the old network is gone, you'll need to reset it and set it up as new instead.

Step-by-step: changing WiFi through Google Home

Step 1: Open the Google Home app on your phone or tablet. Make sure your phone is connected to your new WiFi network.

Step 2: Look for your Chromecast device in the list of devices. Tap and hold on it, or tap the settings icon (usually three dots or a gear in the corner).

Step 3: Scroll down and tap "WiFi" or "Network settings" — the exact wording depends on your Chromecast model.

Step 4: Select your new WiFi network from the list. If you don't see it, make sure the network is broadcasting its name (SSID). Some routers have a setting to hide the network name; if yours does, you may need to type the name manually.

Step 5: Enter your new WiFi password. Check that you've typed it correctly — passwords are case-sensitive.

Step 6: Tap "Connect" or "Save". The Chromecast will attempt to join the new network. This usually takes 30 seconds to a minute.

Step 7: Once connected, the app will confirm the change. Your Chromecast is now on the new network and ready to use.

What to do if the app method doesn't work

If the Google Home app can't find your Chromecast or the connection fails, the device may have lost power or the old network may no longer exist. In this case, you'll need to reset the Chromecast and set it up again as a new device on your new network.

To reset a Chromecast, hold down the reset button (usually on the back or bottom of the device) for about 10 to 15 seconds until the light blinks. The device will restart and return to factory settings. Then open Google Home, tap the "+" button to add a device, and follow the setup steps to connect it to your new WiFi network. This takes about five minutes.

Troubleshooting common problems

If your Chromecast connects but then drops off the network, the issue is usually a weak WiFi signal. Move the Chromecast closer to your router, or check whether other devices are having trouble on the same network. If only the Chromecast is struggling, try restarting both the device and your router — unplug the router for 30 seconds, plug it back in, and wait for it to fully restart before trying again.

If you see an error message saying the password is wrong, double-check that you've entered it exactly as it appears. Passwords are case-sensitive, and spaces or special characters must match. If you're unsure, log into your router from a computer to confirm the password, or reset your WiFi password and then update the Chromecast.

If the Chromecast won't appear in the Google Home app at all, make sure your phone is on the same WiFi network as the Chromecast. The app can only see devices on your current network. If the Chromecast is on your old network and your phone is on the new one, the app won't find it — in that case, reset the Chromecast and set it up fresh.

Moving your Chromecast to a 2.4 GHz or 5 GHz band

Some routers broadcast two separate networks: one at 2.4 GHz and one at 5 GHz. Older Chromecast models only work on 2.4 GHz, while newer ones support both. If your router combines both bands into one network name, your Chromecast will connect automatically to whichever band it supports.

If your router broadcasts separate network names for each band and your Chromecast won't connect to the 5 GHz network, select the 2.4 GHz network instead. Check your router's manual or settings page to see which network name corresponds to which band. Once you know, use the Google Home app to switch your Chromecast to the correct one.

Frequently Asked Questions

Do I lose my settings when I change WiFi networks?

No. Changing the WiFi network through the Google Home app keeps all your settings, linked accounts, and preferences intact. You only lose settings if you perform a factory reset, which erases everything and returns the device to its original state.

Can I change WiFi if my Chromecast is already unplugged?

No. The Chromecast must be powered on and connected to WiFi to change networks through the app. If it's unplugged or the old network no longer exists, reset the device and set it up again on the new network.

What if I don't know my new WiFi password?

Check the label on the back or bottom of your router — the password is usually printed there. If not, log into your router's settings page from a computer or phone using the router's IP address (often 192.168.1.1) and look for the WiFi password in the wireless settings.

Why does my Chromecast keep disconnecting from the new network?

The most common cause is a weak WiFi signal. Move the Chromecast closer to your router or remove obstacles between them. Restart both the Chromecast and router by unplugging them for 30 seconds. If the problem continues, check whether your router is overloaded — too many devices connected at once can cause drops.

Can I change WiFi on multiple Chromecasts at once?

No. You must change each Chromecast individually through the Google Home app. Open the app, select one device, change its network, wait for it to connect, then repeat the process for the next device.