I suggest you look into wireless bridges. In simple terms, you setup a main N (5 GHz) wireless router near your computer, and you add a N wireless bridge near the DVR. I have this setup for my home, and it works great with the iPad and iPhone. I have had success with Media Sharing, On demand, Pandora, YouTube, D* Apps, DirecTV2PC with this arrangement. I think the key is good signal strength, low noise levels, and selecting a channel your neighbors are not using. I could not run Cat 6 cable where the DVRs are located, so wireless fills the bill. Best wishes!