The basic setup: what you need before you start
Connecting a Chromecast takes about five minutes and requires three things: the Chromecast device itself, a TV with an HDMI port, and a WiFi network you can access. You do not need a cable subscription, a separate remote, or any special equipment beyond what most homes already have.
Start by plugging the Chromecast into an HDMI port on your TV. If your TV sits far from an outlet, use the included USB power cable and plug it into a USB port on the TV itself — most modern TVs have one. If your TV has no USB port, use a standard USB power adapter (the kind that charges a phone) plugged into a wall outlet instead.
Turn on your TV and switch to the HDMI input where you plugged in the Chromecast. You should see a setup screen appear on your television within 30 seconds. If nothing appears, unplug the Chromecast, wait 10 seconds, and plug it back in.
Key Takeaways
- Plug the Chromecast into an HDMI port on your TV, or use the included USB cable if the HDMI port is far from an outlet.
- Switch your TV to the correct HDMI input and wait for the setup screen to appear.
- Use the Google Home app on your phone to connect the Chromecast to your WiFi network by scanning a code shown on your TV.
- Once connected, you can cast video, music, and photos from your phone, tablet, or computer to your TV without needing a separate remote.
- If the Chromecast does not appear in the Google Home app, make sure your phone and the Chromecast are on the same WiFi network.
Connecting to WiFi using the Google Home app
On your phone or tablet, read the Google Home app from the Apple App Store or Google Play Store. Open the app and sign in with the Google account you want to use with this Chromecast.
Tap the plus icon in the top left corner and select "Set up device." Choose "Set up a new device" and then select your home or create a new one if this is your first time. The app will search for nearby devices and should find your Chromecast within a few seconds.
When your Chromecast appears in the list, tap it. The app will show you a four-digit code on your phone and the same code on your TV screen. This confirms you are setting up the right device. Tap "Yes" on your phone to continue.
The app will then ask you to select your WiFi network from a list. Choose the network you use for your other devices, enter the password, and tap "Connect." The Chromecast will join the network — this usually takes 30 to 60 seconds. You will see a confirmation message on both your phone and your TV when it is complete.
What to do if the Chromecast does not show up in the app
The most common reason the Google Home app cannot find your Chromecast is that your phone and the Chromecast are not on the same WiFi network during setup. Make sure your phone is connected to the same network you plan to use with the Chromecast before you open the app.
If your phone is on the correct network and the Chromecast still does not appear, restart both devices. Unplug the Chromecast for 10 seconds, plug it back in, and wait for the setup screen to reappear on your TV. Then close the Google Home app completely and reopen it.
If you are using a 5GHz WiFi network, try switching to the 2.4GHz band instead — some older Chromecast models work better on 2.4GHz. Your router settings or your phone's WiFi menu can show you which band you are on. Many routers broadcast both bands at once, so you may see two network names that are similar or identical except for a "5G" label.
Naming your Chromecast and finishing setup
After the Chromecast connects to WiFi, the Google Home app will ask you to name it. The default name is usually "Living Room" or "Bedroom," but you can change it to anything you want. A descriptive name like "Kitchen TV" or "Bedroom Chromecast" makes it easier to find later if you have more than one device.
The app may also ask whether to enable Guest Mode, which lets visitors cast to your TV without signing into your Google account. You can turn this on or off at any time in the app settings later, so do not worry about getting it perfect now.
Once you finish these steps, the setup is complete. Your Chromecast is now connected to your WiFi and ready to use. You can close the Google Home app — you do not need to keep it open to cast video or music to your TV.
Casting content from your phone or computer
After setup, casting is straightforward. Open any app that supports Chromecast — YouTube, Netflix, Spotify, Google Photos, and most other streaming apps have a cast button built in. The button usually looks like a rectangle with curved lines in the corner.
Tap the cast button and select your Chromecast from the list. The video or music will start playing on your TV within a few seconds. Your phone becomes a remote: you can pause, skip, or adjust volume using the controls on your screen.
You can also cast from a computer using Google Chrome. Open Chrome, click the three-dot menu in the top right, select "Cast," and choose your Chromecast. Then select the tab or your entire screen to send to the TV. This works for any website, video, or content you can see in your browser.
Troubleshooting common connection problems
If your Chromecast connects to WiFi but apps cannot find it when you try to cast, restart your phone and the Chromecast. Unplug the Chromecast, wait 10 seconds, and plug it back in. Then close and reopen the app you are trying to cast from.
If casting starts but the video keeps stopping or buffering, move your router closer to the Chromecast or reduce the number of devices on your WiFi network. Chromecast works best when it has a strong signal. If you have a 5GHz network available, try switching back to 2.4GHz — it has better range through walls and obstacles, even though it is slightly slower.
If you need to reset the Chromecast completely and start over, hold down the reset button on the device for 15 seconds while it is plugged in. The light will flash orange and then white. Once it is white, the device has been reset and you can set it up again from the beginning using the Google Home app.
Frequently Asked Questions
Do I need a Google account to use Chromecast?
Yes, you need a Google account to set up Chromecast using the Google Home app. However, once it is set up, other people can cast to it without signing in if you enable Guest Mode in the app settings.
Can I use Chromecast on a 5GHz WiFi network?
Most Chromecast models support both 2.4GHz and 5GHz networks, but some older models work better on 2.4GHz. If you have trouble connecting or casting, try switching to the 2.4GHz band. Check your router settings or your phone's WiFi menu to see which band you are using.
What if my TV does not have a USB port for power?
Use the USB power adapter that comes with Chromecast and plug it into a wall outlet. The included cable is long enough to reach most outlets near a TV. If you need more length, any standard USB-to-micro-USB cable works.
Can I cast from multiple phones to the same Chromecast?
Yes. Once the Chromecast is set up and connected to WiFi, any phone or computer on the same network can cast to it. Each device can take turns casting, but only one can cast at a time.
How do I remove a Chromecast from the Google Home app?
Open the Google Home app, press and hold the Chromecast device, tap the three-dot menu, and select "Remove device." This unpairs it from your account but does not erase the WiFi settings. To fully reset it, hold the reset button on the device itself for 15 seconds.