SpecificSymptomsWhat YouExperiencePossible SolutionsUSB interface isnot workingUSB peripheralsare not working• Check that your monitor is turned On.• Reconnect the upstream cable to your computer.• Reconnect the USB peripherals (downstream connector).• Switch Off and then turn On the monitor again.• Reboot the computer.• Some USB devices like external portable HDD require higherelectric current; connect the device directly to thecomputer system.High SpeedUSB 3.0interface isslowHigh Speed USB3.0 peripheralsworking slowly ornot working at all• Check that your computer is USB 3.0-capable.• Some computers have USB 3.0, USB 2.0, and USB 1.1 ports.Ensure that the correct USB port is used.• Reconnect the upstream cable to your computer.• Reconnect the USB peripherals (downstream connector).• Reboot the computer.Wireless USBperipheralsstop workingwhen a USB 3.0device isplugged inWireless USBperipheralsrespondingslowly or onlyworking as thedistance betweenitself and itsreceiverdecreases• Increase the distance between the USB 3.0 peripherals andthe wireless USB receiver.• Position your wireless USB receiver as close as possible tothe wireless USB peripherals.• Use a USB-extender cable to position the wireless USBreceiver as far away as possible from the USB 3.0 port.44 | TroubleshootingUniversal Serial Bus (USB) Specific Problems