I have followed the most current Intel product descirption, set up directions, and company instructions. My Router is a Lynksys WRT150N with the most recent up dates and proper configuration, latest firmware, transmitting in N class only.
The connection is fine, though I only connect at 54, but when I switch my router set up to transmit on N class only, all connectivity is lost.
Setting in my device manager at such time is properly set to recieve 40hz broad signal and Mixed (the proper N class settings found in both Microsoft and Intel instructions).