I have two ATV 3s, both fully updated with the latest software, both working on the same WiFi network, both with 5 bars reception. One pulls movies down from iTunes like it should, a little swirly thing and then the movie starts. Te other takes about 5 minutes before it will start. I've tried resetting the bad ATV, resetting (and updating the firmware) the Airport Extreme, restarting iTunes and restarting my iMac. I can see no reason why one works and the other doesn't. Any help will , obviously, be very welcome. TIA!