I've got this htpc attached by Blue cable to the cable modem. I've got ultimate cable and best I get on speed test is 50 Mbps. Usually it's around 30Mbps. Not bad but I should get 100 +Mbps, Ultimate. When I plug the laptop into the cable modem using the same cable I usually plug into the htpc and I then speed test for a result of 118 Mbps! What might be holding back the speed to the Htpc.?