So a good IT system will lock everything down by the MAC address. Meaning, absolutely ZERO unauthorized / unregistered systems. This even includes desktop switches, and of course any personal wifi devices.
When I first learned of this I was using a desktop switch to simplify my 3 laptop workstyle. I brought an unused switch to the office, plugged it in and the IT department's scanners would pick it up and disable my cubicle's Ethernet port completely.
Best suggestion I can think of is to use Bluetooth from your work PC.