Let the hive mind of Engadget get that for you.
"As someone who doesn't reside in the USA, I was wondering what would be the best way to get internet for my computer in the US for a couple of weeks? If it were Europe I know I'd look for some prepaid data. Is there anything similar offered by American carriers? A MiFi or a data SIM that I can tether from would work, but I'm trying to maintain a tight budget. Help!"
My Mitz 62 inch came with an internal tuner and DVR that ran on a cablecard...but I couldn't get support from Cox for it. When the "expert" came out to install it, he had less knowledge than Chuck's weakest link on the Nerd Herd. Finally, a support rep admitted that the cable provider would never truly support the card. The reason: the company makes significantly less on cablecard rentals than set-top monthly fees.
And THAT is why the cablecard is DOA.
Call Cox back. It's the law, they have to support it.