I can get a solid signal from 72.7 & 61.5 but my 1000.4 Dish will only get it through port 1 (as confirmed after running a check switch) I have tried covering the port 1 (77) and port 3 (61.5) lnbs with tin foil to help locate 72.7 on port 2 lnb but no luck. The check switch indicates good connection of port 2 and port 3 lnbs but the port 1 lnb is the only one that will lock on to any of the satellites. Need suggestions. Thank you