Agreed. Comcast has terrible management, and unreliable (usually bad) customer support, but I've found that their network operations are very good (when they're

Agreed. Comcast has terrible management, and unreliable (usually bad) customer support, but I've found that their network operations are very good (when they're not applying corporate anticompetitive policies); a couple of their top IPv6 people hang out on the Comcast forum on dslreports.com, and they really seem to care a lot about proper network management.