I receive all the channels on Echo 3 and none of the channels on Echo 12. Most of the HBO are on 12 and I am not receiving them. Signal strength on Echo 3 40/60 on all tp. No signal on any tp on Echo 12. Use three individual 300 dishes for 110, 119, and 61.5 with cascading SW21X and SW21 at a south Florida fishing cabin, VIP211K. Any help would be great as I am paying for HD and HBO and am only getting 3 HBO of 9 that I should. I have switched the Lbn and thats not the problem.