Freeze/Crash Question

I have my ATV connected to my IMAC via ethernet. I use a Harmony 880 to control turning on and off the ATV. Most times when I turn on the ATV, it turns on fine. About every 5-10 times, though, it seems to be frozen at the picture of the Apple logo at the center of the screen. I am forced to unplug and replug and it then loads fine. Anyone else have this problem or have a solution? Thank you.