XDJRX wont connect to Rekordbox on Laptop??

Hi There

Please can you help?

I'm trying to connect my surface pro 4 with Rekord Box 6.0 to XDJRX firmware version 2.21 via USB so I can use as  MIDI Controller. Rekordbox is set to PERFORMANCE mode and driver has been installed.

When I go to the MIDI button on the XDJRX I can select which deck 1&2 however no tracks are displayed on the XDJRX Screen?? I can play tracks on the Laptop and audio sound comes through the XDJRX speakers but I cannot select of scroll through tracks using the controller. All that's displayed is the controller/laptop icon??

Ive looked at many tutorials and I cannot see what im doing wrong??

Can someone help?

Many Thanks