Check your lines. I almost switched before and found out that a faulty line was slowing down my connection.
Well, it happens on both dsl connections I have, on 2 different routers, so I think its verizon screwing up again, or well could be the construction down the street, who knows?
Edit: Going down:
I'm a try my other router again, hold on.
Last Edit: The other connection seems to be working now, so ima close this: