"The 'computer' is lying" situation is a problem generally. I didn't receive a 16-port switch and another small item a few years back even though it was noted as delivered. Neither Amazon nor UPS would do anything about it. A couple weeks later (I think it had been snowing) I discovered the package tossed in a ditch to the side of my driveway. Everything was actually fine but I had reordered and didn't have a need for a second switch.