That was the problem on my installation, he installed the Hybrid LNBf and Dish 1000.2, removed the Ground block, installed the Solo Hub, then connected one of the two RG6 coaxes to the Hub. He had a 50-50 chance of getting it right, and he didn't pick the right one the first time. My tech replaced about 25' of my original RG6 quad-shield from my original Dish 2000 installation from 1996, but when that didn't fix it, I came to SatelliteGuys and had the answer in a matter of minutes.
Hope this is what's going on with your install!