I have sort of a mini network at home, were 3 desktops connect wireless to a router, one laptop and wdtv live as well. The problem is one of the desktops, I connects through a Asus PCE-N13 card to a Bufalo N600 router. The card connects at n speeds but the network data transfer speeds is ridiculously slow, I should have all the right settings according to achieve 150mbs speed and been through a few sites researching without any luck. It worked great for a few days but now I just cant seem to bring back the transfer speed. Below are images for connection speed and transfer speeds.