I got a new 3D tv and I had the HR20 receiver and it wont get 3D programming so I called directv and got a replacement. They sent me a HR21-100 and I now get no signal on Sat 99 and 103. I have the BBand on the just like on the HR20 and everything else is the same as before. I did the satellite setup like on the other receivers and it still wont work. I called Directv and told them the problem and they sent me another HR21-100 and it wont work either. When I hook the HR20 back where I switch the HR21 I get a signal on 99 and 103 so I hooked the HR21 again and still no signal on 99 and 103 so I get no HD on this receiver. Anyone have any advice?