Hello there, So I have a DIR-655 connect through a motorola SURFboard 6180 modem for my cable internet I just got. I have 20 down and 3 up. Now if I wire directly to the modem I get 21 down 3 up approx with 30 ping. If I go through the router it's like 15 down and 1.9 up with 120 ping. Any ideas why?