To tackle the “Error: Network connection failed. Please check your internet connection” message, follow these steps:

1. Check Your Internet Connection: Ensure your device is connected to the correct Wi-Fi network. Look for the Wi-Fi icon or check settings.
2. Restart Your Device: Power off your computer or mobile device, wait a few seconds, and then turn it back on.
3. Restart Your Router/Modem: Unplug the router/modem from the power source, wait for 30 seconds, and then plug it back in. Wait for it to fully reboot.
4. Check for Outages: Use a secondary device or check with your internet service provider to see if there are any outages in your area.
5. Update Network Drivers: If you’re on a computer, go to the device manager, find network adapters, and check for any available updates.
6. Disable VPN or Proxy: If you’re using a VPN or proxy, disable them temporarily to see if they are causing the issue.
7. Forget and Reconnect to Wi-Fi: Go to your device’s Wi-Fi settings, forget the network, and then reconnect by entering the password again.
8. Run Network Troubleshooter (Windows): Access the settings, find “Network & Internet,” and run the troubleshooter for additional help.
9. Factory Reset Router: As a last resort, reset your router to factory settings, but note that this will erase all your custom settings.

By following these steps, you can efficiently troubleshoot the network connection error and potentially resolve it without needing professional help.