New wireless card for my sager NP9150

I believe my wireless card is running poorly. Some programs work fine with the internet while others, firefox, crashes my connection making me reset the modem. I posted this information in the networking section of this forum and it suggested that my wireless card was bad. Using a variety of other wireless routers I still have connection issue suggesting that the card is the problem even though the...

New wireless card for my sager NP9150

New wireless card for my sager NP9150