Tivo Motorolla Tuning Adapter blinking yellow

I've been through a few cox phone techs now and no one knows how to fix this. Last tech seems to think it's an account issue.  He has checked and made sure everything is cabled properly and even tried Tivo in a different location which has a cablebox. I've had a total of 3 cablecards 5 tuning adapters, 3 service calls, endless phone calls, and 2 tivos, I don't think there is anything else I can do on my side.  Each tech has spent over three hours at my home trying to resolve this issue with no resolve.  I am unable to get any of my tier channels, my premium channels or Cox on Demand.  Please help me find someone who knows what they're doing.