If a puck is buffering that normally means that it is not receiving a sufficiently fast and consistent signal.
If you are connecting via WiFi then check for channel congestion using a third party app on a smartphone, move the puck nearer the router, even a couple of feet may make a difference.
Go to the Netflix HELP page and perform a network test and let us know what speed is recorded?
Despite some of the nonsense spouted here, a puck will happily stream in HD with a incoming ISP speed of 32 mbps, it only uses around
5-7 mbps of that bandwidth, that's what I had for the first 18 months.
However, even if you have a really good incoming speed but lots of other users the puck may not get the stable stream it requires.
Your best bet, if possible, is to connect with an ethernet cable and turn of WiFi in the puck menu.
