I've got the same problem. got 8 ll120 fans. and they just started going crazy lately. they worked fine for about 2 or 3 months but now i can hardly control any of them any more. they sometimes wont turn on or off, change color on there own, randomly start blinking,freeze on certain parts of the fan and other stuff. it's a real bummer bcus they really are quite nice when they work. i've also noticed my commander pro sometimes just disconnects for a split second and instantly reconnects. and afterwards it usally messes up the rgb. if i connect them individually they all work fine. hope this will be fixed soon :/.