How to reconnect your Chromecast to a different WiFi network

To change your Chromecast's WiFi network, you need to reset it to factory settings, then set it up again on the new network. The fastest way is to hold the reset button on the back of the device for 10 to 15 seconds until the light blinks orange, then use the Google Home app on your phone to walk through setup a second time. If you cannot reach the reset button or prefer not to factory reset, you can also change the network through the Google Home app's device settings menu — but this only works if your Chromecast is still connected to WiFi and you have the app installed on the same network.

The method you choose depends on whether your Chromecast is still online. If it is, the app method takes two minutes. If it is offline or you are switching to a completely different network, a factory reset is more reliable.

Key Takeaways

  • The reset button on the back of your Chromecast erases all settings when held for 10 to 15 seconds, forcing you to set up the device again from scratch.
  • After a reset, open the Google Home app, tap the plus icon, select "Set up device," and choose your new WiFi network during the pairing process.
  • If your Chromecast is still online, you can change networks without resetting by opening the Google Home app, selecting your device, tapping the settings gear, and choosing "WiFi" to forget the old network and join a new one.
  • The device must be powered on and within range of your new WiFi router for either method to work.
  • After reconnecting, test the connection by casting a video or photo from your phone to confirm the Chromecast is working on the new network.

Resetting your Chromecast and setting it up on a new network

If your Chromecast is offline or you want a clean start, a factory reset is the most straightforward approach. Locate the small reset button on the back or bottom of your device — it is recessed, so you will need a paperclip or the tip of a pen to press it. While the Chromecast is plugged in and powered on, hold the reset button for 10 to 15 seconds. The LED light on the front will turn orange and begin blinking, which signals the device is resetting.

Once the light stops blinking and turns white again, the reset is complete. Unplug the device, wait 10 seconds, and plug it back in. The light will blink white as it boots up. Now open the Google Home app on your phone or tablet, tap the plus icon in the top left, select "Set up device," and choose "Set up a new device." Select your country, then choose the WiFi network you want to connect to. Enter the password for that network, and the app will pair your Chromecast. This process usually takes one to two minutes.

Changing WiFi without a factory reset using the Google Home app

If your Chromecast is already connected to WiFi and you want to switch to a different network on the same router or a nearby one, you can change the connection through the app without resetting. Open the Google Home app, find your Chromecast device in the list, and tap it. Tap the settings gear icon in the top right corner, then scroll down and select "WiFi."

Tap "Forget this network" to disconnect from the current WiFi. The app will then show you a list of available networks. Select your new network, enter the password, and wait for the connection to complete. This method works only if your Chromecast is powered on and can still reach your router — if it is completely offline, you will need to factory reset instead.

What to do if your Chromecast will not reconnect to the new network

If the Chromecast connects briefly but then drops the connection, or if it will not find your new network at all, move the device closer to your router. Chromecast devices work best within 30 feet of the router and perform poorly through thick walls or metal objects. If moving it is not an option, consider whether your router is broadcasting on the 2.4 GHz band — older Chromecast models only support 2.4 GHz, while newer ones support both 2.4 GHz and 5 GHz. Check your router settings to confirm the band is enabled.

If the device still will not connect, restart your router by unplugging it for 30 seconds, then plug it back in and wait for it to fully boot. Once the router is back online, try connecting the Chromecast again. If that does not work, perform a factory reset and set up the device from scratch on the new network.

Checking your Chromecast connection after switching networks

After you have successfully connected your Chromecast to the new WiFi network, test the connection to make sure it is stable. Open the Google Home app, select your Chromecast, and tap the settings gear. Scroll to "Device information" and look for the WiFi signal strength — it should show at least two or three bars. If it shows only one bar or no signal, the device is too far from the router or something is blocking the signal.

The best test is to actually cast something. Open YouTube, Netflix, or Google Photos on your phone, tap the cast icon, select your Chromecast, and play a video or photo. If it plays without buffering or dropping, your connection is working. If it stutters or stops, move the Chromecast closer to the router or check whether other devices on the network are using a lot of bandwidth.

Troubleshooting when the Google Home app will not find your Chromecast

If the Google Home app does not see your Chromecast during setup, make sure your phone is connected to the same WiFi network as the device. The app must be on the same network to discover and pair with the Chromecast. If your phone is on a guest network or a different band (5 GHz instead of 2.4 GHz), the app will not find the device.

Check that your Chromecast is powered on — the LED light should be visible on the front. If the light is off, plug the device in and wait 30 seconds for it to boot. If the light is on but the app still will not find it, restart the Google Home app by closing it completely and opening it again. If that does not work, restart your phone and try once more. As a last resort, perform a factory reset on the Chromecast and set it up again from the beginning.

Frequently Asked Questions

Can I change my Chromecast WiFi network without the Google Home app?

No, you need the Google Home app to change or set up WiFi on a Chromecast. The device itself has no buttons or screen for WiFi configuration. If you do not have the app installed, read it from the Google Play Store or Apple App Store, sign in with your Google account, and follow the setup steps.

Will changing WiFi networks erase my Chromecast settings or saved apps?

Changing the WiFi network through the app menu will not erase anything — your apps, preferences, and linked accounts stay the same. A factory reset, however, erases all settings and returns the device to its original state. You will need to set it up as if it were brand new.

What if I forgot my new WiFi password?

You will need the password to connect your Chromecast to the network. Check your router's label on the back or bottom — the default password is often printed there. If you changed the password and cannot remember it, log into your router's admin panel through a web browser or the router's app, and reset the WiFi password from there.

Does my Chromecast need to be on the same WiFi band as my phone?

Your phone and Chromecast must be on the same WiFi network to cast, but they do not need to be on the same band. Your phone can be on 5 GHz while your Chromecast is on 2.4 GHz, as long as both are connected to the same router. However, if your router broadcasts separate SSIDs for each band, make sure you connect the Chromecast to the band it supports.

How long does it take to reconnect a Chromecast to a new network?

Using the app method without a reset takes one to two minutes. A factory reset and full setup takes three to five minutes. The time depends on how quickly your Chromecast can reach your router and how fast your internet connection is.