CDJ 2000nxs not connecting to my Mac

My CDJ 2000NXS will not connect to Serato, It's been 2 weeks now since the problem started.

i have CDJ2000 Nexus, CDJ 900NXS and DJMS 9 and am having trouble fully connecting the Right deck (CDJ 2000nxs Deck 2). CDJ 900NXS and DJM S9 connects and allows me to control my Serato interface . however the CDJ 2000NXS does not connects and. It never gives me the option to select the deck number and will not control. The display stays at the connecting node and shows a picture of a laptop and CDJ connection but that's it. It like CDJ 2000NXS is not able to communicate with my Mac

Specs below:

Macbook Pro with OSX 10.12.1
CDJ2000 Nexus Firmware 1.30

Serato 1.9.4

CDJs and the DJM S9 connected via a USB hub to mac's USB

I have tried everything trick i no ie. updated all hardware, restarted all hardware and even change all USB cables and hub but it still not working

I am desperate now cos I have a gig on Friday

PLEASE PLEASE HELD