DVS connection

Hello, I have a DJM 750 MK2 with latest update. My IOS is currently updated as well. When I hook up computer to mixer it says it is connected. When I look at utilities and connection with DVS it shows no signal. I have emailed for support and no one has replied to my issues. I have purchased the plan specifically for this feature. Can anyone pick my brain and help me figure this thing out? Thanks