As silly as it sounds, have you done a Windows Update with the USB extension cable plugged in? It might show a driver update. That is at least a start.
Also, what type of USB ports do you have? If you are trying to use a USB 2.0 device on a v1 USB port, then you could run into trouble with that as well.
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I swear, troubleshooting is a science: the best discoveries are always on accident...