I inferred from the wording of the original question that he wanted NPVR to access his directv dvr over the network, which of course it will not. I thought perhaps he might come back with a further explanation of what he wanted to accomplish, but he seems to have given up instead. c'est la vie...
server: NextPVR 5.0.7/Win10 2004/64-bit/AMD A6-7400k/hvr-2250 & hvr-1250/Winegard Flatwave antenna/Schedules Direct main client: NextPVR 5.0.7 Desktop Client; LG 50UH5500 WebOS 3.0 TV