First, there may be a problem with the usb cable, that is to say, the connection of the usb hub and the computer has poor contact, or broken, resulting in the usb hub can not be used, the solution is to change a data connection line to see, there are some usb hubs and data lines connected together, it can only be changed to a new usb hub.
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The second is that the chip or resistor in the usb hub may be faulty, resulting in the usb hub can not be used, and then simply change the new usb hub.
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Third, there is a problem with the usb interface of the computer, try to change the usb interface of other computers.
Cause: The type of the USB port is inconsistent
Workaround: Uninstall the hub
1, use the shortcut key \"Windows R\" to open the running interface, and then enter \"devmgmt.msc\" in the open field, and then click \"OK\".
2, then in the \"Device Manager\" page, click \"Universal Serial Universal Controller\". Then right-click on the hub and click \"Uninstall\".