I'd like to understand the problem as fully as I can before I call the
cable
company. My experience has been that their "first responders" are
incapable
of serious troubleshooting. I doubt Comcast would provide priority
service
for anything, anyway. They're a monopoly and they know it and recently, I
believe JD Powers recently rated them *below* used car salesmen in
trustworthiness. Updating Lily Tomlin for the 00's:

"We don't care, we don't have to. We're the cable company!"

--
Bobby G.

Well I happen to be one of those "First Responders", and I'm afraid I have
to disagree with you. As every cable plant is different, Comcast does take
it's technicians education seriously. I will admit there are some techs out
there that are below average and dishonest, but the good one's far outweigh
the bad ones.

Voltage on the line is taken seriously. You will see this when you call.