I have just worked out that I have the same problem. I have a Yamaha RX-V671 but only have BitTorrent Sync running on a single computer in the house. When BitTorrent Sync is running, net radio streaming on my Yamaha receiver drops out within 5 - 20 minutes. Once that happens, I can't choose a different station, and can't log onto the receiver either via a browser or from the Yamaha app on my phone. I can still ping the receiver ok, but have no access to it. Turning it off and on again resolves the issue - but only for another 5-20 mins. If I turn off BitTorrent Sync on the computer, the receiver will stream net radio indefinitely. As soon as I turn it back on, the receiver will be unable to access the network again after about 5-20 mins. Hopefully this will be something simple. I suppose we could add a rule to the Windows firewall to prevent traffic between the BitTorrent computer and the Yamaha receiver, but I would only want to block the relevant BitTorrent Sync traffic as the computer is providing my music to the receiver via DLNA. Justin