thanks so much for the quick response. it appears those x's do indicate a problem. I agree - it did seem to move when I swapped the wires.
For testing purposes - is it correct that I could bypass the switch and test each wire directly using a single receiver? If I bypassed the switch...
I have a slimline 5 that was working fine for at least a few years. I had outgrown the DIRECTV Zinwell Multiswitch 8 way switch and bought a replacement kit with two Zinwell Multiswitch HD Kit 2x (WB68).
For reasons unknown(most likely a loose connection) I had issues with setting up the two...