Hello. I've noticed the past few weeks that my browsing speed slowed down and doesn't seem as fast as it used to be. We recently upgraded our WAN speed from our ISP to 20MB. I checked out my WAN speed on speedtest (http://www.speedtest.net/result/2618800245.png) and it looks like the speed is fine. My router is a Asus RT-N66U with DDWRT firmware loaded. How come its regardless still slow? I tried using Firework, Chrome and IE and they all produce the same result.. It wont even fully load a 1080p youtube clip without it hanging up... Any help is appreciated. Thanks!