The map was very disappointed me .... the reception for more distant router (well 15m) could be put little over 10%. Constantly abort signal. DC had the idea that the card but probably is not good. All Try avail ... No New Driver, no changes in the router config, no slewing of the antennas etc. Before the map ultimately wanted to dispose of, but I tried it again with an external antenna (passive). That was at the beginning not even better.The desperation was back. But then I joined the external antenna to the left terminal and the miracle happened: Immediately on receipt of 80% and all problems dissolved into air. I could not believe it, but since the reception is always between 70 and 80%. Perfect. Unfortunately, one must first come out and lay down the additional cost of the antenna. Oh, I have Win7 Pro / 64bit and the router is 3 rooms (according to many walls) away.