I know this probably doesn't sound important to you with your issue, but I transfer, almost daily, four HD 1 hour programs between two Premiers. One is wired on one floor and one is wireless on another. I usually watch something live or recorded while they transfer. I have never had any error of any kind. My router is set for DHCP but the two TiVo units have reservations and use channel 1, which nothing nearby seems to use. It just bothers me why mine works and you have problems.