I just bought a lake house and it has a Didh Network 1000.2 Dish Pro Plus dish. I'm already a Dish Network customer and have 2 viP211z's I've been using in my RV. There is a double coax running from the dish to the house, but only one coax is connected at the house. The Original owners had that one coax connected to a splitter and was trying to run 2 wallys but it would cut in and out due to partial or total signal loss. My vip211's are doing the same thing. Can i connect both coax cables, 1 to each receiver to correct this problem? If so, how do the need to be connected?