When I was in IT, had someone who couldn't get their USB printer to be detected by their laptop. They turned everything on/off and it never would show up. Even I was a little confused, so I unplugged it from the laptop, and then went to go plug it back in, but couldn't feel the port. I go to take a look, and find there's no USB ports on that entire side of the laptop. somehow they plugged the USB cable into the Ethernet port.