is there a way to keep the kinect awake to work with the power on voice command on the xbox one s?

[Windows Central Question]

my xbox one s with kinect + adaptor wont respond to turn on voice command after the consol has been off for more than 5 minutes,
but does turn on by voice command within the first 5 minutes of being turned off

the xbox one is set to instant on, and all other voice functions work fine