If your Chromecast with Google TV keeps restarting or rebooting unexpectedly, you’re not alone.
Fortunately, there are several proven methods to diagnose and fix the problem.
Whether it’s a power supply issue, software glitch, or network instability, this guide walks you through step-by-step solutions to get your Chromecast running smoothly again.
Why Does Chromecast Keep Restarting?
Frequent reboots are often caused by one or more of the following:
- Unstable power supply – Using the wrong adapter or plugging into a weak USB port can cause power interruptions.
- Faulty HDMI connection – A loose or incompatible HDMI port may disrupt signal flow.
Wi-Fi instability or interference – Poor network strength or nearby electronic devices can affect performance. - Overloaded system – High-resolution streaming or corrupted app data may overwhelm the device.
- Outdated software – Missing updates can lead to compatibility issues and bugs.
- Settings – Persistent software errors may require a full reset to resolve.
What To Do When Chromecast is Restarting
Follow this step-by-step guide when Chromecast keeps restarting:
1. Check the Power Source and Port
A poor or unstable power supply is one of the most common causes of unexpected restarts.
So, make sure you use the original power adapter and cable that came with your Chromecast.
Avoid plugging Chromecast into your TV’s USB port and always use a wall outlet.
Try a different power outlet to ensure your current one isn’t faulty.
2. Check Your TV or Monitor
Incorrect HDMI input settings or a faulty port can interrupt power or signal. This can be the reason why Chromecast keeps rebooting. Confirm your TV or monitor is set to the correct HDMI input.
If your TV has multiple HDMI ports, switch to a different one and test again.
Restart your TV after changing ports to refresh the connection.
3. Check for Interference
Electromagnetic interference or physical obstructions can cause connectivity issues and device instability.
Make sure your Chromecast is not blocked by objects or placed behind the TV.
Avoid placing it near other electronic or wireless devices like routers, speakers.
Use the HDMI extender to reposition Chromecast for better signal and airflow.
Position your Wi-Fi router closer if possible, for stronger connectivity.
4. Use an Ethernet Adapter
Wi-Fi instability is a common culprit for streaming interruptions and restarts.
To fix this you can use a Chromecast Ethernet adapter to directly connect your device to your router.
A wired connection ensures a more stable and reliable network, especially in areas with poor Wi-Fi signals.
5. Lower the Streaming Resolution
The next thing you can do is use a lower resolution. High-resolution streaming like 4K puts more strain on the device and network, possibly causing crashes.
- To do so, go to Settings then select Display & Sound then Resolution.
- Choose a lower resolution and a lower refresh rate.
- This reduces bandwidth use and may prevent overloading the device.
6. Clear Cache and App Data
Corrupted app cache or data can cause app crashes, which may force the Chromecast to restart.
So, clear cache and see if this helps you fix the issue. Here is how you can do it:
- Navigate to Settings then, Apps. Then select See all apps.
- Now, select the app you’re using and clear its cache and data.
- If this does not work, you can uninstall the app. To do that, go to Settings then Apps then See all apps.
- Select the app and choose Uninstall. Open the Google Play Store, find the app, and reinstall it.
7. Check for System Updates
Next, check if the system is up to date.
- To check this, go to Settings then, select System then, About then, System Update.
- Download and install any available updates.
- Restart your Chromecast after updating to apply changes. If you are having issues updating the system, then follow this guide to fix it.
8. Factory Reset the Chromecast
If none of the above steps work, a full reset clears out any persistent software errors or corrupted settings.
- Ensure the Chromecast is powered on.
- Press and hold the physical reset button on the device until the LED changes from amber to white around 10–15 seconds.
- Release the button and wait for the reset process to finish.
- Set up your Chromecast again using the Google Home app on your phone. If you are having issues connecting it to Google Home, follow this guide.
- Corrupted cache files in the casting app may trigger playback and HDCP errors.
- To fix it, clear app cache and data.
Wrapping Up
By following these eight troubleshooting methods—from checking your power source to performing a factory reset—you can often resolve the rebooting issue without needing professional help.
Start with the simplest fixes like switching HDMI ports or clearing app cache, and work your way up to more advanced solutions like using an Ethernet adapter or resetting the device.
With a bit of patience and methodical testing, your Chromecast should be back to delivering seamless streaming in no time.
