58 | TroubleshootingUniversal Serial Bus (USB) Specific ProblemsSpecificSymptomsWhat 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 (downstreamconnector).• Switch off and then turn on the monitor again.• Reboot the computer.• Some USB devices like external portable HDDrequire higher electric current; connect the devicedirectly to the computer system.Supre SpeedUSB 3.0interface is slow.Super SpeedUSB 3.0peripheralsworking slowlyor not workingat all• Check that your computer is USB 3.0-capable.• Some computers have USB 3.0, USB 2.0, and USB1.1 ports. Ensure that the correct USB port is used.• Reconnect the upstream cable to your computer.• Reconnect the USB peripherals (downstreamconnector).• Reboot the computer.Wireless USBperipherals stopworking when aUSB 3.0 deviceis plugged inWireless USBperipheralsrespondingslowly or onlyworking asthe distancebetween itselfand its receiverdecreases• Increase the distance between the USB 3.0peripherals and the wireless USB receiver.• Position your wireless USB receiver as close aspossible to the wireless USB peripherals.• Use a USB-extender cable to position the wirelessUSB receiver as far away as possible from the USB3.0 port.