I have had 3 x 9242 and 2 x 6400 (and 3100) for over 10+ years wired to the normal 2 x 4 SW44 cascade ... never had issue with signal via either power inserter on port 1 of the SW44. I decided to re-arrange receivers now that the kids have moved out and regardless of which HD receiver is connected to either power inserter, no signal detected. BUT the 3100 see's both birds on a check switch. Unfortunately, I did not take note when disconnecting the cables which port each receiver was on , but I have methodically made note of connections ...
9242 A or B inputs from any SW44 ports 2-4 either switch works, any port connected to port 1 on either SW44 fails check switch
6400 any port 2-4 on either SW44, but not port 1 on either SW44
3100 works on all ports including power inserter, see's both birds on check switch
What am I missing ?
Update
Found a problem, after power cycle both SW44, found port 1 on the second SW44 (where the power inserter is connected) has no SAT signal, swapped out the power inserter, but still no signal. Not sure why the first SW44 was not working, but power cycle fixed the issue