Reply to Problem at my gig 2 weeks ago!

Sup guys! As some of you might know, I had my first gig 2 weekends ago. I ran across a little problem that was just annoying and fortunately didn't have any consequence. Through the whole evening , Traktor would keep calibrating my setup. I was using my CDJs-400, DJM-2000, and 1 X1 + my MBP (latest gen). I don't know if that was caused by the vibrations (we set up right in front of some subs, on the stage...) or by the quality of my USB hub (same one that I use at home) but I would love to fix this issue...so what do you believe?