Itested on other sites and got pretty crappy results. So, I called Comcast and said so, they directed me to speedtest.net. First thing I told the guy was I noticed that it was testing at a local Comcast site, the site reports where you are sending info. He said he knew nothing about that. I ASK HIM if this was a Comcast site, he said ABSOLUTELY NOT. He then told me he checked my connection and all was in order and I should be at 20mb d/l and 5mb u/l tjhe previous sites said I was at about 5mb d/l and like 4mbu/l.
Low and behold, speedtest, net said I was blazing along at 21.82kbps d/l and 3962kbps u/l.
I fimnd this EXTREMELY SUSPECT.
So, beware would be my suggestion.