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First identify the device: a Chromecast (3rd generation or older) is set up through Google Home on a mobile device, while Google TV Streamer (4K) has its own setup flow using Google Home or the TV remote. They are not the same device, so follow only the instructions for the hardware you have.
1. Identify your device and prepare what it needs
Check the device name or packaging before you begin. Older Chromecast models plug into a TV and are configured with Google Home. Google TV Streamer (4K) is a separate streaming device with a remote and an on-screen setup flow.
Chromecast (3rd generation or older)
- A Chromecast, an HDMI-equipped display, and power for the device.
- A Google Account and a secure Wi-Fi network with its password available.
- A supported mobile device with Google Home. Google’s Android setup instructions specify Android 9.0 or later and 5 GHz capability; those Android requirements should not be assumed to apply to iOS. See Google’s Chromecast setup instructions for the applicable platform requirements.
Google’s legacy Chromecast setup flow uses a mobile device; setup on a computer is not supported in those instructions.
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Google TV Streamer (4K)
- The Streamer and its remote, an HDMI display, and the included power adapter.
- A Google Account and secure Wi-Fi, or Ethernet if you prefer a wired connection.
- For phone-assisted setup, the latest Google Home app on a phone or tablet. The phone or tablet needs 5 GHz support if you plan to set up over a 5 GHz network.
- Google specifies an Ultra High Speed HDMI 2.1 certified cable, sold separately, for this device. This is not a general requirement for older Chromecast models.
See Google’s Google TV Streamer setup instructions for the model-specific details.
#1 Best Overall
- The Google TV Streamer (4K) delivers your favorite entertainment quickly, easily, and personalized to you[1,2]
- HDMI 2.1 cable required (sold separately)
- See movies and TV shows from all your services right from your home screen[2]; and find new things to watch with tailored recommendations for everyone in your home based on their interests and viewing habits
- Watch live TV and access over 800 free channels from Pluto TV, Tubi, and more[3]; if you find an interesting show or movie on your TV, mobile app, or Google search, you can easily add it to your watchlist, so it’s ready when you are[2]
- Up to 4K HDR with Dolby Vision delivers captivating, true-to-life detail[4]; and you can connect speakers that support Dolby Atmos for more immersive 3D sound
2. Connect the device to your display and power
For Chromecast (3rd generation or older)
- Plug the Chromecast into an HDMI input on the TV or display.
- Connect it to power, then switch the display to the HDMI input you used.
For Google TV Streamer (4K)
- Connect the Streamer to an HDMI input. If using Ethernet, connect the cable before setup.
- Connect the power adapter and switch the TV to that HDMI input.
- Wait for the remote to pair. If prompted on screen, hold Back and Home until the remote light pulses. Choose your language and region when asked.
3. Complete the setup for your device
Set up Chromecast (3rd generation or older) in Google Home
- Connect your phone or tablet to the Wi-Fi network you want the Chromecast to use.
- Open Google Home and follow the setup prompt if it appears. Otherwise, choose Add, then Device, and follow the app’s instructions to select and configure the Chromecast.
- Complete the remaining prompts in the app. Google’s documented flow is mobile-based, not computer-based.
Set up Google TV Streamer (4K)
You can use Google Home on a phone or tablet, or complete setup with the TV and remote.
- For phone setup, open Google Home and choose the option to add a device. Select your home, then scan the QR code shown on the TV or enter the setup code.
- Accept the terms, select a room, sign in to your Google Account, and follow the remaining app prompts.
- If phone setup is unavailable, use the on-screen instructions and TV remote to complete setup instead.
Google’s full instructions are in its Google TV Streamer setup guide.
Rank #2
- The Google TV Streamer (4K) delivers your favorite entertainment quickly, easily, and personalized to you[1,2]
- HDMI 2.1 cable required (sold separately)
- See movies and TV shows from all your services right from your home screen[2]; and find new things to watch with tailored recommendations for everyone in your home based on their interests and viewing habits
- Watch live TV and access over 800 free channels from Pluto TV, Tubi, and more[3]; if you find an interesting show or movie on your TV, mobile app, or Google search, you can easily add it to your watchlist, so it’s ready when you are[2]
- Up to 4K HDR with Dolby Vision delivers captivating, true-to-life detail[4]; and you can connect speakers that support Dolby Atmos for more immersive 3D sound
4. Fix discovery or Wi-Fi problems
If Google Home cannot find the device
Try the basic checks before resetting anything:
- Make sure the streaming device is powered on and close to both the setup phone and the router.
- Confirm the phone and device are using the intended network. Use a strong connection, check that the network name is visible, and verify 5 GHz support if you are using that band.
- If the network name is hidden, Google’s discovery guidance describes entering the network details manually.
- Restart the router and streaming device, then force-close and reopen Google Home. Check that the app has the relevant permissions.
If the device still does not appear, Google lists additional options including toggling the phone’s Wi-Fi off and on, reinstalling Google Home, trying another phone or tablet, connecting the phone manually to the Chromecast’s temporary Wi-Fi network, and disabling access point isolation on the router. Follow Google’s device discovery troubleshooting steps. Restarting and checking the network should come before a factory reset.
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If you changed your Wi-Fi network
A streaming device remembers one Wi-Fi network at a time. The steps depend on the device:
Rank #3
- Expand your home entertainment without buying a new TV; Google Chromecast lets you stream your favorites from your phone, tablet, or laptop; no remote needed
- Chromecast is easy to set up up; just plug it in, connect to Wi-Fi, and start streaming to turn your TV into a smart TV; it works with almost any TV that has an HDMI port
- Works with the apps you already know and love; enjoy shows, movies, music, games, sports, photos, live TV, and more from over 2,000 streaming apps in up to 1080p
- With Chromecast, you can stream, pause, play, or adjust the volume right from your phone with just a tap; while you’re streaming, you can still use your phone as you normally do
- Mirror your laptop screen or turn your tablet into an even better entertainment system; surf the web or see your media on the big screen
- Chromecast (3rd generation or older): Use Google Home to forget the old network, then connect the device to the new one.
- Google TV Streamer (4K): Use the TV’s network settings to forget the old network, then connect to the new one.
Google documents the model-specific process in its instructions for changing the Wi-Fi network.
When a wired connection or adapter may help
Google says an Ethernet adapter can provide a direct wired connection. Chromecast and Chromecast with Google TV do not have built-in Ethernet ports, so check that an adapter is compatible with your exact model before buying or connecting one. See Google’s Ethernet adapter information.
Quick Recap
Rank #4
- HD streaming made simple: With America’s number 1 TV streaming platform,* exploring popular apps—plus tons of free movies, shows, and live TV—is as easy as it is fun. *Based on hours streamed—Hypothesis Group
- Compact without compromises: The sleek design of Roku Streaming Stick won’t block neighboring HDMI ports, and it even powers from your TV alone, plugging into the back and staying out of sight. No wall outlet, no extra cords, no clutter.
- No more juggling remotes: Power up your TV, adjust the volume, and control your Roku device with one remote. Use your voice to quickly search, play entertainment, and more.
- Shows on the go: Take your TV to-go when traveling—without needing to log into someone else’s device.
- TV, simplified: With setup that only takes minutes, a simple-to-navigate Home Screen, and an uncluttered remote control that does all you need—Roku makes it easier to watch the TV you love.
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