I have a Genie with 2 HD receivers that share the signal. All the receivers work when no diplexer is installed. However, when I add a diplexer the Genie receives good signal but the other two do not. They just keep saying Connecting... I also am not getting all the antenna channels on the diplexer TV as I do in the other straight antenna connections. I do have a booster installed on the OTA system and all the other TVs work well and have good picture. I am not sure I am installing the diplexer in the correct location. I have put it inline between the Signal out to IRD and the cable that goes to the main Genie set. Then inline other the other end.