Something sounds off here. Since about Windows 7, you can't access the PC that doesn't have network shares. Is there no IT staff there? Is there old information (misinformation) about IP addresses don't mean access here?
I have caught one employee trying to get my tablet to switch wifi connection from his phone McAfee mobile security alerts me of this machine address. But my concern is other employees not aware of his deceptive practices.

Chowhound
Comic Vine
GameFAQs
GameSpot
Giant Bomb
TechRepublic