Mysterious device connected to my router

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20 Feb 2007
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1,716
There's someone called "Kate-PC" connected to my network, whom I stumbled across while perusing the device list in the tomato firmware of my linksys router.

I know nobody called Kate so I assumed it was one of the neighbours who happened to connect to my wireless by accident (I was previously using the cabled connections on my router and had only just activated the wireless mode, not having gotten around to setting the password for the encryption thingy yet). I go ahead and do whoever she is a favor by setting a password and restarting the router. I checked the device list again and she was gone.

Sorted, I thought, but today I checked it again out of idle curiosity and there she is again. It's giving her an IP on my network yet I have no idea how she is connected. I have changed the router password, the network password, and set it to only allow my specific mac address to connect via wireless. There is only one other device connected to the router and this is my upstairs computer. None of the other lights on my router are flashing so the only thing that's left is the wireless, but how can this be when I have set multiple passwords?

What is this person doing there and how can I get rid of them?
 
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