If Windows itself is checked up and it's fully OK (cmd.exe run as administrator => sfc.exe /scannow), then troubleshoot internet connection or WiFi, apply changes/settings. Usually it helps, and if doesn't fix the problem, let us know all error messages and notes what You see.
Sometimes when we run into wifi problems, we tend to think there is some complicated solution required. As a result, we overlook simple solutions. However, it’s always best to try the obvious first. That way, you won’t spend an enormous amount of time trying unnecessary, complicated solutions. Here are some of the top things to look into before you dig too deep into other possibilities.
1. Check For a Wifi Switch or Button
2. Reboot Your Computer
3. Check Your Wifi Network
4. Try Your Computer On Another Wifi Network
5. Try Another Wifi Adapter
Well, it seems to me that there in Antarctica are more serious problems than the Wi-Fi.
Maybe this author is already dead, or they have no connection to the rest of the world at all.
Anyway, an otherwise polite person would say something.