Unable to connect via USB

I have the arducopter 2.6 (new)

I installed the APM2.0 and drivers. When connecting via usb the device powers up… green light by gps antenna and red and blue flashing lights… seems to be in sequence red red blue flashing. The gps antenna is plugged in to the gps port as well as a plug into the i2c port. The pc does not acknowledge the device is plugged into the usb… no error messages nor notifications of a new device installed and it does not show in the device manager.

I have tried this on multiple computers on multiple usb ports using multiple cables.

Any ideas to try or tell me the silly thing I’m missing?


Well… the third cable was it… I decided to try one more cable and it worked.