I'm on my 4th HR21 that will not pick-up sat 110. I've tried everything same result. I also have 2 HR20 and both works fine. I've swithced location, switch the B-band around and still same result. I read on DTV forum from someone with identical problem, by changing from 5LNB to the slimline dish that fixed the problem. Is it safe to say that there's a compatibility problem w/the 5LNB and the HR21? Is there anybody else out ther with this problem. I was able to get the signal the morning of the new uodate but somehow it went away.