DirecTV turned on my MRV the other day (I sent your recommended email and got a response less than 30 minutes later that it had been turned on so thanks for the tip). I have 5 HD-DVR's sharing through Ethernet connections (2 other HD-DVRs are currently not part of the MRV). DSL to router sending internet via wi-fi and direct ehternet connection through Netgear Powerline units. The HD-DVRs are 1 HR24, 1 HR22, and 3 HR20's. All are fed via single wire SWM. The 24 and 22 are both in my theater room and the others are in bedrooms and the family room. When I try to play something on the theater room units or one in the master bedroom I can pull from any of the other DVR's with perfect picture and sound. However, when trying to play on the units in the family room or downstairs extra bedroom I get freezing, and stopping and starting. The only thing I can determine that's different, even though the theater room is fed by a wi-fi extender that is picking the signal up through the air and then sending it via ethernet to the DVR's and all the other units are fed via Powerline directly, is that the theater room and master bedroom are in the newer part of the house (additions) and are all wired with 3 prong outlets. The other two rooms are in the old part of the house and have 2 prong outlets. Could that make a difference? Any thoughts?