This is apparently a BIG problem with this model laptop. If yours is still under warranty you can get the motherboard replaced, but the problem might well come back again. The cheapest temporary fix is to buy a USB wireless adapter.
Read the forums at the two web addresses below. [The first address is very long and might appear on two lines.]
forums13.itrc.hp.com
forum.tabletpcreview.com
Read the forums at the two web addresses below. [The first address is very long and might appear on two lines.]
forums13.itrc.hp.com
forum.tabletpcreview.com