Tricky is definitely the word for this one. It might look like I just had this one knocked, but when it first occurred to me, it involved six satellite receivers in two buildings a hundred feet apart, and people used the receivers differently, so it looked like about twelve problems. I think it was about eight hours of head-banging over two weeks before I figured it out.

DirecTV doesn't expect that. Because of my experience with that house, I might be able to bring it down to a paragraph that would stump them, but they just can't get it all over the phone.

Be sure the replacement LNB looks identical and is not labeled as an "LNB C."