I have a P* dish/LNB on the 0khz side of a Zinwell 4x4 switch that works fine on both polarities. On the 22k side I have a DBS dish for the occasional freebies. Connected directly to the receiver this dish works fine but thru the switch (22k side) nothing. I made sure this sat's settings included "22k on" in the setup menu. Any thoughts on what's happening here?