However, the MRV firmware could "see" if you have a DECA, if it doesn't see it then . As long as MRV is beta then a user installed home network will work, but maybe not after MRV goes solid and monthly fees are charged. But that really wasn't the point of my post..it was about SWM/fees. There are just too many questions that are unanswered on the DirecTV web site.
For us geeks here .. I think we can help out with support for Ethernet only installations. It will not be something that DIRECTV will support as a matter of normal operations.