I have a whole home system where the coax coming out the wall went to a little box and that connected to my router but a recent upgrade to my router recently bypassed the coax. So now my whole home is inoperable. How do I get it back up?
If you disconnect AC power from the Directv receivers and DVRs, connect the Ethernet cable from the DECA BB Adapter (the little box) to the router then plug the power back in to the receivers, they will configure to the new router.
What do you mean by "bypassed the coax"? The ethernet cable from your DirecTV Cinema Connection Kit (the "little box") still needs to connect to your home network gateway/router. That's how your DirecTV equipment gets its internet access.
the router was relocated and upgraded when the tech did the work he removed the coax and went with strictly an ether connection from the wall. Since the deca was not his equipment he did not reconnect it. I now have the deca and no way to connect it.