Need help? Contact the Chromecast Support Team for assistance.

No Cast devices found?

There are a variety of issues that may prevent Chrome from finding available Cast devices.

Click through this troubleshooter form to help solve the most common issues causing this behavior.

Alternatively, you can follow the troubleshooting steps below:

Basic troubleshooting

Step 1: Check that your Google Cast device is set up correctly
Check that your Google Cast device is set up correctly and connected to Wi-Fi. You should see it on your TV, with its assigned name and the current time, and cycling through photos.
Step 2: Try casting from the Google Cast app
Try casting from the Google Cast app to see if the device is properly connected or requires setup. If you’re using an iOS device, turn on Bluetooth.
Step 3: Make sure the Google Cast device is using the 2.4 GHz band
It is compatible with both 2.4 GHz WiFi 802.11 b/g/n WiFi networks and 5 GHz networks, so you will see both when setting up the device. If you have a dual band router, you must disable AP isolation. Other devices such as your laptop/computer can use the 5 GHz band; the 5 GHz band will maximize performance when using the Cast extension to cast a tab.
Step 4: Check the operating system
Certain operating system settings and installed applications can conflict with the use of the Google Cast device. Read the section below for troubleshooting steps specific to your operating system.
Step 5: Can other devices cast successfully?
If other devices (e.g. phones, tablets) can cast successfully, then it's likely an issue with your router or network.
  • Try rebooting your Wi-Fi router by unplugging and plugging the power source.
  • Make sure that your Google Cast and other devices are connected to the same network. Check that the network name displayed on the TV after the Google Cast device boots up is the same as the currently-selected network in the computer's available Wi-Fi list.

If other devices can't cast successfully, then issues with your computer and/or Chrome are likely.

  • Make sure your computer is on the same network as Google Cast device.
  • Confirm your Chrome browser is up to date. To check the version number, type about://chrome into the search bar. At a minimum, the Chrome browser should be running Chrome 44. If the browser needs to be updated, click Update Google Chrome to update your Chrome browser to the latest version.
  • Disconnect from Virtual Private Networks (VPNs) or proxy servers. The Google Cast device can't communicate with a laptop over these networks. If you need help with this, please check with your service provider for instructions.
  • Ensure that firewall/antivirus software are up to date and aren’t blocking connections to the Google Cast device. Firewall: If you are renting a wireless router, please contact your internet provider. If you purchased the router, check your network firewall settings.
Step 6: Additional troubleshooting steps
If the above steps don’t resolve your issues, try rebooting your Wi-Fi router, your Google Cast device, and your computer by unplugging and plugging the power source. This can help to clear temporary issues.

Still having trouble? Try these browser-specific steps

Running OSX on a Mac?
On Mac, if Chrome isn’t allowed to accept connections, it won’t be able to communicate with your Google Cast device. Check that the Chrome allows this by following the steps below:
  1. In the top left corner, click the Apple icon.
  2. Open System Preferences > Security > Firewall.
  3. If the firewall is enabled, go to Firewall options (otherwise, skip remaining steps).
  4. If "Block all incoming connections" is enabled, disable this setting, save your settings, reboot Chrome (completely exit and start it up again) and try again.
  5. If "Automatically allow signed software to connect" is enabled then make sure that there is not an entry for Google Chrome in the application list.
  6. If "Automatically allow signed software to connect" is not enabled, click the "+" button > navigate to Chrome in /Applications > select it.
Running Windows 7 or Vista on your desktop or laptop?

Is your network setting Home/Work or Public?

Windows distinguishes networks as being either Home/Work or Public; however, communication with devices like the Google Cast device is blocked on Public networks. You can check this setting as follows:

  1. Open ‘Network & Sharing Center’ by clicking on the network icon in the Windows system tray or from Control Panel.
  2. Under ‘View your active networks’ you should see your network (typically the name of your Wi-Fi Access Point.)
  3. If you see ‘Public Network’ under your network with a park bench icon, then this is likely an issue preventing Chrome from communicating with your Google Cast device.
  4. To change this setting, click on the network and click Home network.
  5. Reboot Chrome (completely exit and start it up again) and try again. If that doesn’t work, reboot your computer/laptop and try again.

Disabling the Bonjour service (if installed) may help find the Google Cast device.

Running Windows 8/8.1 on your desktop or laptop?

Is the 'Find devices and content' setting turned to On?

Windows 8 and 8.1 have sharing settings that must be set to ON. The steps to do this differ slightly depending on operating system version.

On Windows 8.1 (most users), you can do the following:

  1. Navigate to Settings. To do this, move your mouse to the far right of the screen to show the menu bar. Settings will be at the bottom.
  2. Select Change PC Settings (at the very bottom of the Settings menu).
  3. Select Network.
  4. Select your connected Wi-Fi network (next to Wi-Fi bar image).
  5. Under Find Devices and Content, make sure it is set to On.

If you are running Windows 8, you can do the following:

  1. Navigate to your Desktop. (Your Desktop will be one of the default tiles on your homescreen).
  2. Click on your Wi-Fi settings on the bottom of your desktop bar (at the very bottom, right hand side of your Desktop).
  3. Right click on your connected Wi-Fi network.
  4. Select Turn sharing on or off.
  5. Make sure sharing is set to On.

Do you have the Bonjour service installed?

Disabling the Bonjour service (if installed) may help find the Google Cast device. You will need to change the Bonjour service properties so that it's startup type is set to 'disabled' and then reboot the machine.
Bonjour is installed by some Apple apps (e.g. iTunes), more information about its uses can be found here: https://support.apple.com/HT2250

Do you have antivirus app installed?

Some Antivirus apps are known to cause Cast discovery issues.

  1. Make sure your antivirus software is up to date by installing any updates from the manufacturer.
  2. If you are running AVG, the latest updates should correct issues with your Google Cast device. In older versions, click Options > Advanced Settings > Web Browsing Protection > Online Shield > Expert Settings. Clear the setting marked Web Browsing Protection. Restart Chrome after changing this setting.
  3. If you are running Kaspersky, under Network Settings, disable Scan Encrypted Connections. After making this change, you should immediately be able to find devices.
  4. For other anti-virus software, look for options related to SSL, TLS, or encrypted connection scanning. You might also try temporarily disabling or uninstalling anti-virus software to confirm that it is the source of the issue.
Running Windows 10 on your desktop or laptop?

Is your network set to public or private?

Windows 10 has privacy settings that must be set to ON in order to communicate with the Google Cast speakers. The steps to do this differ slightly depending on your connection.

If you're using a Wi-Fi connection:

  1. Navigate to Start.
  2. Click on Settings in the Start menu
  3. Click on Network and Internet in the Settings menu
  4. Scroll down and click on Advanced options in Settings menu
  5. Click on Allow your PC to be discoverable by other PCs and devices on this network.  Microsoft recommends turning this on for private networks at home or work, but turning it off for public networks to help keep your stuff safe. 
  6. To verify the Network has changed from Public to Private Network, go back to Network and Internet. Scroll down to Network and Sharing Centre. Under the Wi-Fi name, it should say Private Network. 

If you're using a Ethernet connection:

  1. Go to Start, then select Settings  > Network & Internet > Ethernet.
  2. Click  the network you want to change.
  3. Click Make this PC discoverable.

Do you have the Bonjour service installed?

Disabling the Bonjour service (if installed) may help find the Google Cast device. You will need to change the Bonjour service properties so that it's startup type is set to 'disabled' and then reboot the machine.

Bonjour is installed by some Apple apps (e.g. iTunes), more information about its uses can be found here: https://support.apple.com/HT2250

Do you have an antivirus app installed?

Some Antivirus apps are known to cause Cast discovery issues.

  1. Make sure your antivirus software is up to date by installing any updates from the manufacturer.
  2. If you are running AVG, the latest updates should correct issues with Google Cast device. In older versions, click Options > Advanced Settings > Web Browsing Protection > Online Shield > Expert Settings. Clear the setting marked Web Browsing Protection. Restart Chrome after changing this setting.
  3. If you are running Kaspersky, under Network Settings, disable Scan Encrypted Connections. After making this change, you should immediately be able to find devices.
  4. For other anti-virus software, look for options related to SSL, TLS, or encrypted connection scanning. You might also try temporarily disabling or uninstalling anti-virus software to confirm that it is the source of the issue.

Less common issues

Some issues can be caused by router or network settings
Sometimes Chrome discovers a device on the network, but cannot establish a connection to it. These errors are usually caused by router or networking settings. Please ensure that AP isolation is disabled on your router, and that any firewall features on your router that might block incoming connections to your Google Cast speakers are not enabled.
Clock Synchronization Issue
  1. Check whether your computer clock is out-of-sync with current Internet time. A useful site is Time.is, which will report the time difference between your computer and the actual time. If your clock is within several hours, you can skip further steps.
  2. If you set your time manually, check that it is set correctly including the timezone. If your clock shows the correct local time, but is set to a non-local timezone, this may be the cause the issue.
  3. Preferably, enable automatic time synchronization so that your clock is always up to date.
Still need help? Check out the related questions below from our help forum.

Elise is a Chromecast expert and author of this help page. Leave her feedback below about the page.

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