I get "correct HD dish setup" on both bands and I do not have a B-Band converter.

I don't have an option for 103(a). However, here are my results for 103s, 103ca, and 103cb.

My setup is a Slimline-3S (SWM) with a H24-100 receiver. This is the only receiver I have hooked up to the satellite. Recently, I've been getting a 771 error, but only on some channels. Two channels I've tried to watch but am unable to are 220 (NBCSN) and 355 (MSNBC). Here are some pics from...