To fix connection errors on YouTube, make sure your internet connection is working fine. You can try restarting or powercycling your network device or switch to a more reliable network connection.

The YouTube no network connection on Android device is usually caused by problems with the phone internet connection. It can also be caused by outdated software or corrupted app data. You will ...

If you see You're offline, Check your connection error message when trying to play YouTube videos even when you are connected to the internet, see this post.