Dynamic range window violation

I'm having this same issue also, almost exactly. I posted about it in these forums and they said they'd need to do some research on my exact situation, and eventually got back to me saying "there's a known escalated issue for your area that we hope to resolve in the coming weeks" and no further information on it; they can't attach my name to the ticket, they can't discount my service because it's barely useable, they can't give me updates as they occur, and of course they have no timeline for resolution.

At least I haven't had to replace hardware and lines and pay for several technicians to come out. This is f*****g ridiculous.