Why is my internet connection not working on my laptop after a virus?

1. Restart the computer.
2. Check your router or modem, reconnecting them or rebooting them if necessary. The light or LED should be on and steady when the system is working properly.
3. Run an anti-malware or virus scan. This can help identify if the virus is blocking your connection.
4. Look for a firmware update. Check with your hardware manufacturer's website.
5. Check your network settings and make sure you're connected to the correct network.
6. Disable secure connection if your network requires it.
7. Disable any VPN connection you might have enabled.
8. Check the DNS settings and make sure you're connecting to the same domain.