If you are running Windows 8, 8.1, Windows Server 2012, 2012 R2, and have encountered the following symptoms –
- You have a USB device connected to a USB port on the hub.
- You safely remove the USB device from the USB port.
- You reconnect the same USB device or a different USB device to the same USB port on the hub.
- The computer does not detect the USB device.
This is a bug with those OS. Do a complete Windows Update, or if you are running Windows 8 or Windows Server 2012, get the hotfix from this page –
Note This issue affects USB 2.0 hubs and USB 2.0 components in USB 3.0 hubs.