I was really happy with my stream and thought it was great technology. Then one day my wife pointed out that now we can't see the Tivo Premiere from the Tivo HD (or the other devices) so we couldn't transfer shows. I spent 2 weeks troublehooting that problem, only to find that the way to correct it is to enable multicast IP on my 2 routers. Great. There is a solution. Except that wen you enable multicast, the stream cannot see the Premiere so I can't transfer data. So we have the great mexican standoff. I have to turn multicast on so that we can use MRV, and then I have to turn it off to use the stream. What a mess.