Verified answer

Try different USB ports?

Test it on a different computer if you don't have another computer plug something else into that USB port to make sure those USB Ports work.

Test it on another system, if it still does not work, send it back and demand a refund.

If it does work elsewhere, then you need to check the usb socket you are using with some other gear. If the socket seems ok, you may be having problems with your USB drivers, which you should delete and reinstall.

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