How To Fix Could Not Communicate With Chromecast

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The Google Chromecast device works seamlessly and effectively in most cases, but occasionally you may experience some issues connecting your mobile devices to your Chromecast. These issues can be frustrating since there is not much in the way of troubleshooting in the manual.

Sometimes you may get an error message on your phone that says “Could not communicate with your Chromecast“.

Trouble connecting to your Chromecast can be caused by outdated software, WiFi issues, or even just a setting in an app or the Chromecast itself. Resolving the problem requires a process of elimination, starting with simpler options and working up to more complex steps.

The following troubleshooting procedures will guide you through the most common fixes for this problem.

Resolving Communication Issues With Google Chromecast

Google Chromecast makes streaming your favorite shows and movies easy since it connects your TV directly to the internet to access a near limitless array of services. The device also allows you to “cast” or send screen displays from your tablet or mobile phone.

The setup of many modern electronic devices uses a hands-off approach for you, the end-user, automating much of the setup process. This trend is a blessing when everything works fine but can be problematic when troubleshooting an issue.

Since many of the setup procedures are hidden behind the automations, you need to follow a step-by-step method using a process of elimination to resolve the problem.

The communication issue with your Chromecast will likely be one of the following.

  • Software version issues
  • Network issues
  • A problem with your settings

At this point, it may seam more complicated than it actually is. The truth is, these are really simple measures and some of them you may skip if it’s something you’ve already tried.

We do, however, recommend checking everything so that you can firmly rule out each problem. Luckily, you’ll probably only have to do this once.

Let’s take a look, first, at what we mean by “software”!

Chromecast Communication Problems Due To Software Versions

Our electronic devices are software-driven, requiring periodic updates to ensure they can speak to other devices.

Various software applications are involved in communicating with your Chromecast, and they must run certain minimum versions or the latest versions to prevent communication issues.

  • Mobile apps. You must have the latest versions for the Google App and the Google Home App.
  • Mobile device operating system. To function correctly, your mobile device must run certain minimum versions for the Google and Google Home apps. An Android phone or tablet must be running the operating system Android 8.0 or later. iPhone and iPad devices must be running iOS version 14.0 or later.

Be sure to eliminate software incompatibilities and bugs by updating any relevant apps or device firmware.

Connecting Google Home To A Smart TV…

Network Issues Can Cause Chromecast Connection Failures

A problem with your home network may have caused communication interruptions with your Chromecast. Unfortunately, it can be difficult to pinpoint if the interruption is intermittent. The following checklist, however, will help you eliminate these network issues.

  • Try a different mobile device. Using a different mobile device when trying to connect to your Chromecast will identify if the problem lies with your mobile device. If you can connect using a different mobile device, then the problem does not lie with your Chromecast. In this case, check your software versions and network setup on your mobile device.
  • Chromecast distance from the WiFi router. To ensure a strong signal, your Chromecast device must be within 15 to 20 feet or 4 to 6 meters of the WiFi router.
  • Try the other network. If your router is dual-band, try alternating the connection. (For instance, switching from 2.4GHz to 5GHz or vice versa.)
  • Ensure you are on the same WiFi. The mobile device you are using must be connected to the same WiFi network as the Chromecast device.
  • Reboot the WiFi router. Routers can get stuck in a loop and deny devices from accessing the network. Remove the power source from the router and leave it off for at least 30-seconds before powering it back up.
  • Restart your Chromecast. The Chromecast device may need a hard restart to re-organize its internal memory. Unplug the power source from the Chromecast, wait for at least 30-seconds, and then reconnect the power.
  • Re-start WiFi on your mobile device. Disconnect your mobile device from WiFi by engaging “Airplane” mode on your device. This will switch off the WiFi component of your device. Turn WiFi back on by switching “Airplane” mode off and connecting to the appropriate WiFi network.
  • Switch mobile date off on your mobile device. Mobile data can sometimes interfere with WiFi connections, particularly if the WiFi signal is not strong. Turning mobile data off on your mobile phone or tablet will force the device to communicate only via WiFi.

These steps should resolve any WiFi issues affecting your Chromecast device’s communication and eliminate this aspect as an issue.

For a detailed guide on connecting and changing WiFi networks on your Google Chromecast, you can also check out this article…

Generation 3 Chromecast troubleshooting

Incorrect Settings Causing Chromecast Communication Issues

Another possible cause for a communication breakdown between your mobile device and your Chromecast can be an incorrect setting. The incorrect setting could be in the Google or Google Home apps on your mobile device or in the software on your Chromecast device.

The easiest of these settings to rectify would be on the Chromecast, but since the setup process is automated, you may not be able to manually check the settings, depending on which model you have.

Historically, you could use a computer to change the settings on a Chromecast device, but this option is no longer supported on the 3rd generation Chromecast. The “Chromecast With Google TV”, however, will allow you to change settings using the included remote.

The only way to clear a faulty setting in the Gen3 Chromecast is to perform a factory reset on the device. This action will restore all the settings in the Chromecast to the settings installed at the factory, effectively erasing any faulty settings the Chromecast may have acquired.

A factory reset on your Chromecast is not a process that can be reversed, and the Chromecast must be set up again from scratch using the Google Home app on your mobile device. No matter which model you have, though, you may find that performing a factory reset clears everything up.

Perform the following steps to execute a factory reset on your Chromecast.

  1. Make sure the Chromecast is connected to the TV, and the TV is turned on.
  2. Ensure the Chromecast is connected to its power source.
  3. Press and hold the button on the side of the Chromecast.
    • On 1st Gen Chromecast devices, hold the button for at least 25-seconds until the LED starts flashing red. The LED should then flash white and your TV screen will go blank. At this point you can release the button and reset will begin.
    • On 2nd and 3rd Gen and Chromecast Ultra devices, the reset button is on on the side. The LED on the Chromecast will start flashing orange. When the LED turns solid white, you can release the button and reset will commence.
    • Chromecast with Google TV devices have a reset button on the back of the device. Hold the button down and the LED will begin flashing yellow. When the LED changes to solid white, you can let go and the device will reset.

Setting Your Chromecast Back Up

If you have been through all the steps to ensure you have the right software versions and WiFi connections, you should now be able to set up the Chromecast from the Google Home app on your mobile device.

Click on the “+” icon in the upper-left corner of the Google Home app. On the presented menu, select “Set up device” and then “New device” to start the setup process.

The Google Home app will automatically search for the Chromecast device on the WiFi network and will automatically run the setup process to add it to your list of devices in the app.

If a factory reset on the Chromecast does not work, you may have to delete the Google Home app on your phone and re-install it to remove the faulty settings. This option will take longer since you will have to set up all your smart home devices on your Google Home app after it has been rep-installed.


It is relatively easy to troubleshoot Chromecast communication problems by taking a logical approach and using a process of elimination. Start with checking the most basic aspects of the communication chain and work through the steps until the issue is resolved.

In my experience, Chromecast has a robust communication process, and it is not often that communication errors occur.

Frequent intermittent communication errors are most likely caused by a weak WiFi signal at the Chromecast. To resolve this communication problem, you should investigate a WiFi booster or locate the Chromecast closer to your WiFi router.

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