help please!!

ive just got a netgear ive installed it as show, my wireless pc shows the
connection ok.
but it wont connect, signal excellent.
my home pc has xp home, my laptop has xp prof, could that be why?
ive got the j45 hardwired in to pc.
sorry to sound like a newbie thats coz i am to this!!

any help would be great

ta dave




dave