WiFi connection dropping randomly
If you are using the drivers provided by your pc vendor try to uninstall those and let windows manage your card. This also works the other way around.
If this doesn't fix it there is another problem.
Seems that there are a lot of driver problems for this card:
- http://www.tomshardware.co.uk/forum/41953-18-atheros-ar9002wb-spontaneously-disconnects
- http://www.eightforums.com/network-sharing/2580-unable-connect-wireless-network.html
- tons more...
You may want to try this driver: http://drivers.softpedia.com/get/NETWORK-CARD/Atheros/Atheros-AR9002WB-1NG-WLAN-Driver-100067-for-Windows-8.shtml although it may in theory not be safe. Atheros (qualcom) does not provide any drivers on its website...
Another potential source of drivers. Try the latest one if the one above does not work: http://www.atheros.cz/atheros-wireless-download.php?chipset=31&system=5