Check to see that both computers have the parallel ports set to ECP for maximum transfer rate . On most desktop computers 1. Turn OFF your computer. Turn ON your computer. As the computer is booting up it will usually display a notice saying to hit the Del key.
Some computers have different instructions.
You may find that if you have an older computer, you may not be able to find any references to the parallel port. In that case, you will not be able to change the setting. The Direct Cable Connection will still work but at a slower speed. After getting into the CMOS, navigate to the parallel port settings. Follow the instructions on the screen to change the setting.