I have Cox internet and when I run Speedtest, it shows anywhere from 15-40 M bits down and 6-15 M bits up. The signal strength was immediately healed it now shows 5 bars versus the former 1-2 bars in our new home. I bought a TP-Link TL-WN822N, which is a high gain USB wi-fi antenna system. After reading the posts on various forums, I decided to replace the DW1501. In our previous home, even when the XPS 8300 was directly adjacent to the router, even touching, the best reception displayed was 4 bars and now it is 1-2 bars.
My wife & I recently moved to a location where my computer is farther from the router than it used to be. I have a Dell XPS 8300 that contains a DW1501 Wireless-N Half-Mini card.