Hi,
I am having a hardware/software communication problem when I try to use a powered USB Hub to HID connect my CDj 900's to Traktor. The problem only occurs when I use the hub for the connection, whereas if I make direct USB connections between the CDjs and my Macbook Pro it works perfectly.
When I make the connection through the USB HUb, the CDjs correctly control the right and left channels on Traktor software but the output to my external mixer only comes out of one channel on my external mixer. In preferences --> Output Routing the output deck A and Output deck B only allow for Pioneer CDJ L and Pioneer CDJ R for both decks. I know this is wrong because when I directly connect them I can select 0, 1, 2, and 3 for the decks. Under Audio setup I have it correctly set to Pioneer CDJ (core audio).
I have tried connecting one CDj directly to one USB port on my computer and the other through a USB hub with no luck. I have also tried connecting both CDJs through the USB hub, again no luck. I have tried different USB cables and I have tried a different USB hub (same brand/model) and no luck. Any thoughts on what I am doing wrong? Do I have to rerun the aggregator using the hub in place?
USB Hub: Cables Unlimited (USB-1870): problem occurs when powered by AC or through USB port
MacBook Pro: 2009, 2.93 Ghz Intel Core 2 Duo
OS X 10.8.2 (Mountain Lion)
Traktor Scratch 2.5.1
CDJ firmware: 4.20
Thanks for any help!