Summary: My first ML-2855ND printer was DOA because the interface circuits on the board were bad. This made it impossible to set up. I called Samsung tech support because this problem is very unusual (in 25 years working with computers it was a first to have something that seemed to function but would not set up). The printer comes with both usb and network ports and I tried both. They did a quick phone analysis and determined that they would "fix" it for the paltry sum of $169.