[BrianG]

I know many older computers do not enforce the negotiation for power, but with so many USB devices on the market now, I can see computer makers and the OS enforcing it more stringently.

Hmm, so, there is a possibility that using an external power source to power the clink, BEC, and ESC cpu may help the USB work. This could be done by attaching the battery to the ESC, but lifting the red wire from the clink to the ESC. What I'm getting at here is that maybe something like this could be offered as a troubleshooting tip for those having trouble getting the USB to work.