I have been having horrible ping in CS:S for the last 2 weeks. I finally decide to call Embarq about it and talk to a support tech. I already know why it is so bad all of a sudden (they put me on interleave) but I play dumb to see what his answer would be. I tell him that I have been getting 150+ ping when I used to get ~50ms, and he immediately tells me that they can do nothing about that and to check my "speed" with a program he gave me the link to (A bandwidth test ). I do it and my dl rate is good so he says that there is nothing wrong with the "speed" of my connection. I then tell him that indeed there is a problem with my speed and that speed and download rate are two different things. After a few minutes of argueing he concedes that I was right but still says that there is nothing he can do about it and that he didn't know why my latency would be so high all of a sudden. I then ask him if I am still on fastpath or if I was switched to interleave and after a brief hesitation he confessed that I was put on interleave recently and that it "may prevent errors that could happen while using fastpath". I kindly tell him that I would take that risk and my connection dropped about 30 minutes later. Now I have a constant ping of 30-50ms on Counterstrike Source. Moral of the story: Do your homework before you try to get a tech to help because for some reason they would rather lie to you about your situation and their capabilities instead of trying to help.