I have Comcast High Speed Internet and I just got it around a month ago. I play online games frequently and all my games have run with a perfect connection until now. It seems that whenever I play a match, my connection is fine until a few minutes into the match and it drops rapidly after and stays all the way down for the rest of it. My modem is connected with a USB cord rather than an ethernet port. What could be some of the reasons that my connection is really laggy (worse than dialup)? Thanks in advance.