[Alan Anderson]

Nothing is being disabled on purpose.

It seems to happen only when the robot has been turned on and is running user code before the Driver Station makes its network connection to the field. I've only heard about it from teams using LabVIEW, but that might not mean anything.

Wild guess: It might have something to do with the time-of-day clock on the roboRIO. i'll do some checking when I have access to a robot on Tuesday.