Hi Catgirl, IA09 is an error exclusively for the Contour system, and it indicates a complete lack of signal going into the cable line. Here's a copy of the latest self-installation guide for Contour 2,
http://bit.ly/2GXVsWp. Is this happening on all receivers or only one receiver? Please check to ensure that all cables are tightly secured and free of damage. Please also make certain that any splitter or amplifiers you may have are in good, working condition. If you need any additional assistance, please include a link to this forum thread and email us at cox.help@cox.com. -Kevin