Logitech Sphere MP Connection Problems

Ok, I got a Logitech Sphere MP (Motorized Pan) and is working great (when it wants)...

I found that if I got off the extender (for putting the camera on an greater spot), the webcam is working like a charm (till now).The problem is that if I let the extender on it, the webcam is disconnecting (from the logitech software) but still appears in the device manager.

After a little research I got some reading about power consumption for the usb's and I'dlike to know if anyone know what is the minivoltage consumption of the sphere and if we can change it trough the power scheme of the usb hub in the device manager.

Thanks.