General FAQs

Having trouble with your Chromecast? Don't worry, your question may be answered below. If your question isn't covered, please 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 adaptors provided with the Chromecast for optimal performance.

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

Whenever Chromecast finds a new device in the area, it will display the Found New Device card that lets you know a new device is available to be set up.

My Chromecast won't fit into my TV's HDMI port. What should 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 perform a factory data reset (FDR) of my device?

Please review the How to Factory Data Reset (FDR) your Chromecast article to reset your device correctly. 

Do I need to disable AP/client isolation on my router?

Yes. You will need to disable AP/Client isolation, also known as client isolation, on your router. Please refer to your router documentation to find out 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/client isolation, you will be unable to set up your Chromecast.

If you are attempting to connect through a Wi-Fi extender, please 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 can I find out my firmware version?
To check the Build (Firmware Version) number of your Chromecast device:
  • Mobile Device: Open your Google Home app > Select your Chromecast device card > Tap the device card menuMenu in the top-right corner > tap Settings > Scroll down to the bottom to locate “Firmware Version: XXXX”
  • Computer: Open your Google Home app > Click “Settings” next to your Chromecast device > Scroll down to locate “Firmware Version XXXX”
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 in at the wall and connected to your wireless network during this time. You can follow the steps below to try to activate an available update if you think your device may be eligible:
  • Leave your Chromecast plugged in and connected to your Wi-Fi network for at least one minute.
  • We recommend that you plug your Chromecast in at the wall using the USB power cable and power adaptor 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 > Select your Chromecast device card > Tap the Menu button Menu in the top-right corner > Tap Settings > Tap the more button Menu in the top-right corner > Tap Reboot.
  • Computer: Open your Google Home app > Click “Settings” next to your Chromecast device > Click "Reboot Chromecast"
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 straight away.
I've already set up my Chromecast. How can I change the Wi-Fi network my Chromecast is connected to?
To change the Wi-Fi network your Chromecast is connected to, simply open up the Google Home app on your phone, tablet or computer and select your Chromecast from the list. From the Chromecast settings page, select your current Wi-Fi network name and select a new network from the drop-down list.
Can I take Chromecast with me to use when I travel?
Yes, Chromecast was built with portability in mind. You can take it with you when you travel, but remember that you will need Wi-Fi access to set up and use Chromecast.
Please remember: Chromecast only works with networks which allow device to device communication. If the router/network on which you’re attempting to set up Chromecast has AP or client isolation enabled or a captive portal (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, please 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.

Please 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 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 Cast icon at the bottom of your screen below the Play button. Tap Devices Available to see your available devices. Choose the device which 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 first device in the list (For example: This iPhone or This Phone). You should now only hear music from your local device and not your speakers.
I can't find my Chromecast extension. Where did it go?
If you've used the Chromecast extension before but it seems to have disappeared, check out these troubleshooting tips that may help it reappear.
If you've never installed the extension, here's how to get started with the Google Cast extension. 
Can I use Cast while in Chrome incognito mode?
Yes. To use Cast in Chrome incognito mode, type chrome://extensions into your browser bar, locate the Google Cast extension and select ‘Enable in incognito’.
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"?
Please turn off "Power Saving Mode" for the Android device that 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?
Multiple users can cast to the TV provided that they are both using Cast-enabled apps and are on the same Wi-Fi network. The only way to prevent others from casting to your TV would be to password protect your Wi-Fi network.

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, please 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 Wi-Fi 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 Play or an authorised Chromecast retailer and are in need of a replacement, please contact us for assistance.
Please note: Proof of purchase is required.

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