I have two Minis, both connected over MoCA (with tx/rx rates of 270mbps). One is in the workout room and gets used fairly regularly (probably 4-5 times a week). The other one is in the master bedroom and might only get used once every 4-5 days. Both were installed within a day of each other. Both are on Panamax surge suppressors.
Today my wife switched everything on (via universal remote) and the Mini wouldn't work. I could see that when remote buttons were being pushed the led on the front of the Mini was responding, but there was no output from it to my Plasma. I tried disconnecting and re-connecting the HDMI cable and still nothing.
I finally rebooted the device and now it's working "fine" again. The only difference between this one and the one in my workout room is that this one is connected to a Panasonic plasma (workout room has an LG plasma) and on this one I've disabled the front LED so I don't see it when I'm sleeping.
Just figured I would let people know that this happened, I'm suspicious that maybe the FW for the Mini is not 100% ready for prime time just yet.