My girlfriend has a Samsung 300E (NP300E5C-S06DE) Notebook running Windows 8. It has a Sandy Bridge i5 and probably some mainstream wireless card.
It can connect to my Android Hotspot (WPA2 PSK). It was able to connect to the Wireless networks at both out parents (some WPA as well). However, it started to have problems with eduroam, a WPA Enterprise network we have at university. And now it does not connect to our new home Wifi, where I set it to WPA2 and AES exclusively for maximum security.
When connecting, it freezes at this stage:
Sometimes, it keeps accessing the hard drive continuously and freezes the whole computer.
I tried booting Kubuntu 13.10, the wireless worked without a problem. The network works fine with my ThinkPad (also Kubuntu 13.10), Android 4.0.4 and Android 4.4.2.
Therefore, I think that this is a Windows 8 (software) issue. How can I diagnose it?