!!URGENT!! Block unwanted user on wireless

[spadjie]

Setup my wireless network yestetrday without secuirity to see if i could just get it working. I managed file sharing between the two computers and internet on both. Today i have decided to put some secuirity on the network.

When viewing the client list of my router config i find my computers and then 192.168.2.5 KROCHE 00:14:A5:94:62:88 - which is not one of mine.

I used mac filtering to block this pc and allow my pc's only. I changed the default router password. I have stopped the broadcast of the ssid. But the client list still says the unknown computer is on my network. How do i get rid?

I also setup wep through the router config. I put in the passphrase and wrote down the key generated. Now, does this key need to be entered on any pc that uses a wireless adapter? And if so how do i do this (i have a belkin wireless g adapter).

Thanks for any help

Cheers

 

[nffc10]

I have found with my belkin router that if a computer has connected to your network before, even if it isn't on now then it stays in the clients list.....weird!

 

[tlarkin]

if its secured with a passkey the client will need the passkey to connect. a lot of times it will just keep those clients in the log even if they are not active. I have had lots of things show up in my router that are still there but I know are not connected because no one has my wpa passkey. It also shows clients who have attempted to connect. Just don't broadcast an SSID if you are worried about.

 

[spadjie]

But this pc was on the network before i added any secuirity.

I have entered a passphrase into my router config, but where do i enter it on my wireless adapter any advice?

P.S. is this a common problem, or should it be fine once i get all my secuirity going?

Cheers