I have been using a Satellite C650-S5049 for 1 and a half years. Until recently, the Atheros wireless card stopped functioning and has been causing a lot of mayhem for my laptop.
a. Whenever i try to enable the wireless driver from device manager, i was greeted with BSOD. Even if it does not do that, it would suddenly start to lag very badly. The lag disappears when I disable the wireless driver.
b. Sometimes when i try to switch on the wireless via flash card(F8), there is no F8 flash card and device manager does not detect the wireless card.
I tried reinstalling the driver but to no avail. I even upgraded by BIOS and did a full system scan for virus and malware but there is none.
Is it a problem of my driver,hardware or some other issues?