I discovered an IP address being used on the network that I did not have any records of. It is a static address within our local private range. The ping is around a 27ms average, which seems a little high. LanSpy gave me the mac address, which starts with 00:90:10... and the manufacturer is "SIMULATION LABORATORIES, INC.". I then ran a port mapper on all of our switches and that IP address or MAC address does not show up on any of them. How do I find where/what this is?