Whom should I blame when Wi-Fi works on my phone but Windows says "No Internet, secured"?

Blame the laptop first—not necessarily Microsoft! If your phone connects to the same Wi-Fi and has internet, your router is probably fine.

Try these fixes in order:

Forget and reconnect: Settings → Network & Internet → Wi-Fi → Manage known networks → Forget, then reconnect.

Restart Wi-Fi: Turn Wi-Fi off and on, or restart the laptop.

Reset the connection: Open Command Prompt as Administrator and run:

cmd

ipconfig /flushdns

ipconfig /release

ipconfig /renew

Check VPN/proxy: Temporarily disconnect any VPN and disable any unintended proxy.

Update the Wi-Fi driver if the issue persists.

Quick diagnosis: If other devices work but Windows doesn't, focus on Windows network settings, the Wi-Fi adapter, or its driver. Don't reset the router unless other devices also have problems.