- Check the lights on the modem and router to confirm that the devices are powered on and connectivity with the ISP is working.
- Verify the cables between the modem and router (and if applicable, the router and the computer) are securely connected and the port LEDs are active.
- Run an ipconfig /all command in the command prompt to check if IP address has been assigned.
- Use troubleshooting tools like 'network diagnostic tools' to identify and diagnose issues.
- Confirm if the modem and router firmware is up to date.
- Reset the modem and router and verify the default settings.
- Temporarily disable the firewall and antivirus software running in the computer to check if the network adaptor issue is resolved.