I have been a Charter Communications customer since January 2010 and have been paying for 5mbs Internet service ever since; however, the company has sent out not one, not two, not three, but four technicians who cannot seem to diagnose or troubleshoot a line if thier life depended on it. Here's the problem. It appears that my modem (Motorola Surfboard 6120 w/0 firmware upgrade), has to boost the upstream signal so much, the dropped packets become intolerable. They (customer service/tech support) say that running 47-50 dBmV upstream... read full review »