Hi, Looking for suggestions. I have a lot of media on external drives connected to a Mac mini and ever had a playback issue. I recently upgraded from a 2009 Mac Mini core duo with 4gb ram to a 2013 model with 16 gb ram and set up three Apple TV 3s throughout the house. Especially when video is 1080p I am experiencing very sluggish video. Audio is fine but video slows, crawls, speeds up, repeats. Last night I grabbed an Ethernet cable and connected it to the Apple TV and Mini, stopped playback and resumed and it still was choppy. I checked one of the other TVs and it was choppy there as well. For a router I use a 2009 extreme basestation, although I am not sure that is a factor as the Ethernet cable did not seem to affect things. Any suggestions?