Is that using coax already in the house, 3 separate coax cables already in the wall for DTV?
I’m not sure I understand the question but, IIUC, you’ll have one coax going to the Genie and one to each additional client/receiver that you have.
What I am also wondering about is how Genie and minis would be connected for all to have Internet access? I have a router and wireless capability, but I prefer hard-wired if possible. The thing is, if it could be done, hard wired, I suspect that would have a negative effect on my Internet speed used for computer. If the Genie and minis were connected wirelessly with no negative effect on my computer, then that may be preferred. My main concern there is affecting Internet speed on my computer, so how would I avoid that, hard wired or wirelessly?
Both the HR34 & HR44 can be connected to your network with an Ethernet cable. Even though the HR44s have Wi-Fi built in they can still be wired to the network if that's your preference.
The Genie feeds the client so it doesn't get its own connection. In your case, you plug in an Ethernet cable into the Genie and you're good to go for things like On Demand to both the Genie and client.
I have five DVRs, a Genie mini, three laptops, several phones, and a few other devices connected to my network and I have no speed issues. I've had both wired and wireless connections for my DIRECTV stuff and I saw no difference in network performance. We use On Demand often and almost always use the “Watch Now” feature. After it starts playing the movie/episode I can’t say I’ve had any hit to network performance and the download plays as if it were already on the hard drive.
However, this is just my everyday observation. There are others here who have tested their networks under various loadings who could probably provide more quantifiable data.
I don’t think anyone can give you a definitive answer…even if we knew your setup. It shouldn’t make a difference whether it’s wired or wireless but you’ll probably have to test it out to see what works best for your particular network configuration.