Click on one of the following links, based on your computer's operating system:Ĥ. The cable may fit in another port, but will not work.ģ. If your machine has more than one port, make sure that the cable is connected to the USB port and not another port such as a network port, line jack or EXT jack. Try a different port on your computer if available. Disconnect and then reconnect the USB cable on both ends. Use a type A/B USB cable that is no longer than 6 feet. Verify that the USB cable is connected directly from the Brother machine to the computer.