General FAQs

Having trouble with your Chromecast? Don't worry, your question may be answered below. If your question isn't covered, try to troubleshoot your issue.

Setup and settings

Why won't the USB cable I use for my other devices work on Chromecast?

Chromecast isn't guaranteed to work with general cables. We recommend that you use the cables and adapters provided with the Chromecast for optimal performance.

I can't tell which of my devices need to be set up.

When you plug your Chromecast or Chromecast Ultra into your TV and select its HDMI port, the name of the device will be displayed in the corner with a Cast icon next to it . During setup, you’ll be shown a list of device names. Select the name that matches the name displayed on your TV.

When setting up a Chromecast Audio device, during the setup process, a sound will be played on the Chromecast Audio to make sure the right device is being set up. 

My Chromecast won't fit into my TVs HDMI port. What do I do?

If you're using a Chromecast (1st gen) device, try using the HDMI extender that came in the Chromecast box. The extender may also improve your Wi-Fi reception.

I can't see the Chromecast home screen on my TV after setting up Chromecast.
You're likely using the incorrect input. Simply press the Input or Source button on your TV’s remote control to change the input until you see the Chromecast home screen.
I am having trouble setting up my Chromecast. Where can I get help?
How do I factory reset my device?

Review the How to Factory Reset your Chromecast article to reset your device correctly. 

Do I need to disable AP or Client isolation on my router?

Yes. You will need to disable AP isolation, also known as client isolation, on your router. Refer to your router documentation to learn how to disable AP isolation.

If you do not have access to your router settings, or if you are attempting to connect through a guest, hotel, or public network with AP or client isolation, you will be unable to set up your Chromecast.

If you are attempting to connect through a Wi-Fi extender, check your extender settings. You will need to disable AP isolation on your Wi-Fi extender before setting up Chromecast to work with your Wi-Fi network.

How do I know my firmware version?

To check the Build (Firmware Version) number of your Chromecast device:

  1. Open the Google Home app Google Home app.
  2. Tap your device and then Settings  and then Device information.
  3. Under "Technical information," check for Cast firmware: X.XXX.XXXXX. 
How do I find my serial number?
To locate a Chromecast device's serial number, unplug the Chromecast device and look for the markings on the back. The serial number is the 12-digit topmost number that begins with a 3, 4, 5 or 6. The serial number is also listed on the Chromecast device box. On Chromecast (1st gen)
On Chromecast
On Chromecast Audio
How does my Chromecast receive updates?
Chromecast updates are rolled out gradually to users and your device will update automatically. Once an update is available, it can take up to two weeks for it to reach your device. It’s important that your Chromecast is plugged into a wall power and connected to your wireless network during this time. You can follow the steps below to try and activate an available update if you think your device may be eligible:
  • Leave your Chromecast plugged in and connected to your WiFi network for at least one minute.
  • We recommend that you plug your Chromecast into wall power using the USB power cable and power adapter that was provided in the box.

After one minute, reboot your Chromecast device by following the steps below that match the sender device you’re using:

  • Mobile Device: Open your Google Home app and then Select your Chromecast device and then Settings and then More button in the top right corner and then Reboot.
Can I move Chromecast to a new TV?
Yes, Chromecast was built with portability in mind. You can move it from room to room for use with other HDMI enabled display devices. You won’t need to set up your device again, as long as your Chromecast is connected to the same Wi-Fi network, you'll be able to cast right away.
I've already set up my Chromecast. How can I change the WiFi network my Chromecast is connected to?
To change the Wi-Fi network connected to a Chromecast device, follow the steps below:
  1. Open the Google Home app.
  2. In the home tab, tap the Chromecast device you'd like to connect to a different Wi-Fi network.
  3. In the top right corner, tap Settings and then Wi-Fi and then Forget network
  4. You'll need to set upyour Chromecast device again on a new network.
Can I take Chromecast with me to use when I travel?
Yes, Chromecast was built with portability in mind. You can bring it with you when you travel, but keep in mind that you will need Wi-Fi access to set up and use Chromecast.

Note: Chromecast only works with networks which allow device to device communication. If the router or network on which you’re attempting to set up Chromecast has AP or client isolation enabled (typical of hotel rooms, school networks, corporate environments), you will not be able to set up your Chromecast device properly. You will need to disable AP or client isolation on your router in order to set up Chromecast. If you need assistance disabling AP or client isolation on your router, contact your router manufacturer.
How can I name or rename my Chromecast?
During setup you have the ability to "name" your Chromecast in order to distinguish it from others, for example "Lulu’s Chromecast" or "Living Room." You can also rename your Chromecast at a later time from the Chromecast setup app.
Does Chromecast support Dolby® Digital Plus?
Dolby® Digital Plus(E-AC-3) audio technology streams are supported for use with Chromecast if the content already contains Dolby Digital Plus streams and Dolby Digital Plus pass-through is supported by your TV or Audio Video Receiver.

Note: A number of TVs will not pass through Dolby Digital Plus streams. The Chromecast will need to be plugged directly into an A/V receiver in order for Dolby Digital Plus streams to work properly.


I’m trying to cast music from Spotify but can’t find the Cast icon in its usual place. Where is it?
Typically the Cast icon is in the top right corner of Cast-enabled apps. For Spotify, you’ll find the option to cast at the bottom of your screen. Tap Devices Available  to see your available devices. Choose the device you want to cast to. Here's more on how to cast from Spotify.
How do I stop casting from Spotify?
To stop casting from Spotify, tap Devices Available  and select the name of the device that you’re casting from. You should now only hear music from your local device and not on your speakers.
Can I use Cast while in Chrome incognito mode?
Yes. Follow these instructions to Cast a Chrome tab on your TV.
What's so great about Cast-enabled sites?
While casting a site's tab works well, there are numerous benefits to using controls provided by the site instead of just casting the tab for that site. Here are all the benefits to using a Cast-enabled site vs. casting a tab.
Can I cast my Android screen while in "Power Save Mode"?
Turn off "Power Saving Mode" for the Android device you're using to cast content. Enabling "Power Saving Mode" can limit the processing power of that device which could affect the performance of the Cast Screen feature.
Can two people with compatible devices and apps cast to the TV at the same time?

No. Only one person with a compatible device and app can cast to your Chromecast at a time. If one person is casting and another other initiates casting as well, it will override what’s currently playing. 

General help

I'm a developer interested in developing for Cast and/or Chromecast. Where can I find more information?
If you're a developer interested in finding out more about developing for Cast and/or Chromecast, visit
What is CEC?
CEC, or Consumer Electronics Control, allows for HDMI devices to be controlled with one remote control. If your television has CEC support, you may be able to turn on and change the input on your TV using your phone, tablet or computer while using Chromecast. Please note that in order for CEC to work (if CEC is supported by your TV), your Chromecast must be powered by a power outlet.

Manufacturers often call CEC by different names, including Anynet+ (Samsung), Aquos Link (Sharp), BRAVIA Link and BRAVIA Sync (Sony), HDMI-CEC (Hitachi), CE-Link and Regza Link (Toshiba), SimpLink (LG), HDAVI Control, EZ-Sync, VIERA Link (Panasonic), EasyLink (Philips), and NetCommand for HDMI (Mitsubishi).
What is HDMI?
Chromecast requires a display device that has an HDMI input, which is common in newer TVs. HDMI stands for High-Definition Multimedia Interface. Inside the Chromecast box, you will find an HDMI extender which is not required for use with Chromecast, but can be used if your Chromecast does not fit directly into your TV. It may also be used to improve your WiFi reception. The HDMI extender should be connected to your TV and your Chromecast.
What do I do if I need a replacement Chromecast?

If you purchased your Chromecast from Google Store or an authorized Chromecast retailer and are in need of a replacement, contact us for assistance.

Note: Proof of purchase is required.

If you purchased your Chromecast from someone other than a Google-authorized retailer, your purchase is not covered by our warranty. Review our Warranty policy here.

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