Once the HD digital adapter light blinks in a sequence of two blinks and one pause, go to Midco.com/CableTVSupport. In the equipment activation section, enter your HD digital adapter serial number and select Activate Now.
After activation, the light on your digital adapter should be lit solid. Press Guide on your Midco remote to scroll and confirm you're receiving the channels in your cable package. (This may take up to 15 minutes to begin, and one hour to completely load.)
Is the light still blinking?