Have you tried every solutions available in internet but the problem is not solved yet? Are you ready to set up your PC again?
Try this for the last time:
From tray icon, click on internet connection icon. Right click on your WiFi connection and select properties.
Click Advanced settings.
Check Enable Federal Information Processing Standards (FIPS) compliance for this network. Click OK. Restart your PC.
This worked for me. Let me know if it works for you.