Which DECA piece are you using? DirecTV has had a lot of turnover in model numbers as of late. The DCAU1R0 is still available online and you might find the home cinema kit too. If you have a DECA splitter it will not work. A good rule of thumb is that the adapter should have a power supply and not be powered over the coax. From what I see, DirecTV is moving away from standalone DECA now that the Genie masters are also the DECA master and I guess they don't consider the commercial market as reason enough to justify a standalone product.