Can't communicate with robot

I have used the two-way usb cable and the vexnet keys and I can’t connect with robot. My laptop can’t connect to the cortex either. Is the VexNet light supposed to light up? Please help :eek:

Well lets start from the beginning because without a better understanding of the symptoms we can’t accurately give a diagnosis.

Were the cortex and the joystick able to connect with the 2 way usb cable following the order below?
both off
plug in both
turn on cortex
turn on joystick

I got got it working again. I just had to use a different computer for some odd reason.