I've had the exact same thing happen to me. I'm using an Apple AirportExpress router; I get a couple of megs into the download and then the connection hangs. On the network status screen (TiVo), my signal strength goes to 'none'. I've tried reconfiguring my network (to some pretty bizarre setups), and I have the latest firmware in the AE and still no luck. Everything else (music, pictures) works fine. It sounds like a bug in the TiVo software, probably in the network adapter drivers. Didn't we get a TiVo software update recently -- like, December?