My Mom has DirecTV and she gave me her extra H25 Receiver for me to use at my place in the country. I used to have my extra DirecTV receiver there H24 until I dropped DirecTV and got Spectrum. When I hooked up the receiver it would not connect to the satellite dish, got error code 775. I was reading something about a SWM adapter....I don't have that in troubleshooting....is that something that I need to make it connect to the dish?