Atheros wireless adapters.
/If you are having a problem with one of these, check this site for the latest drivers and give it a go. Report success or failure here please!
Qualcomm ATHEROS Wireless drivers for Windows
Qualcomm ATHEROS WiFi and Wireless drivers for Microsoft Windows and AR1111 AR2427 AR5001A AR5001X AR5001X+ AR5002G AR5002X AR5004G AR5004X AR5005G AR5005GS AR5005UG AR5005UX AR5006 AR5006EG AR5006EGS