My issue was fixed late last week. I noticed it being fixed (without a peep from them) and contacted the tech operations supervisor that the technicians had put me in touch with. All she provided was:
I had the accounts people look at your house
When I asked what that meant - I was told:
The rates on your account back office stuff
So who knows - but looks like it definitely was a Comcast issue...
If you've gone through some techs coming to your house to rule out any other issue - you may want to try sending an email to: We_Can_Help@cable.comcast.com
If you happen to be in Denver - send me a private message and I'll get you the contact info for the tech supervisor that helped me.