Random Mac appearing on network?

Hi All, I have the Time Machine as our office wireless network thing, which works fine and is fully operational (when it's not completely lame at trying to back up but that's a seprate grip)

Anyhow, in my finder i can see MAC0016cb86*** as one of the machines I supposedly can connect to but there isn't such a machine in the office. Under info it says KIND: PC Server but that's it. When i try and connect to it it doesn't respond.

Can anyone tell me what it is? It's freaking me out! Is there someone watching me !! Help!

The picture image is a a lamo PC monitor with a blue screen.

Sam

You're seeing the wireless network of one of the neighboring offices.

And they can probably see your network.

Just make sure your network is locked and secure as theirs apparently is, using WPA2 preferably.