Here’s a straightforward list of steps to troubleshoot the “Error: Network connection failed” message effectively:

1. Check Physical Connections: Ensure that all cables are securely connected to your modem and router.
2. Restart Your Devices: Power off your modem, router, and device. Wait for about 30 seconds before turning them back on.
3. Check for Service Outages: Visit your ISP’s website or contact them to verify if there are any known service outages in your area.
4. Run Network Troubleshooter: On your device, use the built-in network troubleshooter to diagnose and fix common issues automatically.
5. Toggle Airplane Mode: On mobile devices, toggle airplane mode on and off to reset the network connection.
6. Forget and Reconnect to Wi-Fi: If using Wi-Fi, forget the network on your device and reconnect by entering the password again.
7. Check Firewall and Security Settings: Ensure that any firewall or security software isn’t blocking your connection.
8. Update Drivers and Firmware: Check for updates for your device’s network drivers and your router’s firmware.
9. Use Ethernet Connection: If possible, connect your device directly to the router using an Ethernet cable to rule out Wi-Fi issues.
10. Reset Network Settings: As a last resort, reset your device’s network settings to factory defaults.

Following these steps can help you identify and resolve the network connection issue quickly and efficiently.