Bit One volume problem

I have my Bit One.1 in and everything seems to be working fine but the volume control. I have used many different inputs: optical, low level, and aux. I have also used different sources Ipad, iPhone (both 30 pin and aux jack), and bluetooth.

My problem is that I am unable to adjust the volume through the DRC or the master volume through the software. I can adjust the input level, eq, inputs from the DRC and program just not the volume. I have to adjust the volume on the input source I am using, ipad/iPhone. I want to be able to adjust the volume from the DRC. Is there a setting I am missing?