I have 2 receivers hooked up through two switches (SW 21) going to two TV's, using a Bev dish 500 old style with two lnb's each with two outputs. One STb is Fortec the other viewsat. THe viewsat has problems with one TP where I barely get a signal (12618 i think? BEV channel 333) while that same TP and same channels come in fine on the Fortec using the same dish. Tried switching cables from the LNB but no difference. All the other channels are fine with good quality. Anyone have any ideas?