I've got a 4 hd receiver setup two 211k's and two 612's. Have a 1000.2 dish ran into a dpp 44 switch, 3 receivers work perfect on port 1, port 2, and port 4. Port 3 will only give 119 feed on check switch. when bypassing 44 switch all receivers are fine and have tried 2 different 44 switches. power inserter is installed and i have even tried the switch without it. does anybody have a idea why all 4 will not work on switch at same time