Has my WIFI network been compromised??? experts please read in!

[PremiumG]

I came home from work today and it seemed my computer couldn't access the internet anymore. It couldn't even access the wireless router. So i rebooted the router, disabled/enabled the network connection, double check the WEP password, the usual stuff... Everything seemed fine.

So I went to another computer in the house that also connects wirelessly. I log on to the router using the 2nd computer and then I went to see "attached devices". Under attached devices, I see two computers... the one I was using and my main PC which didn't connect. That was odd i thought. I turned off the main computer and went back to check "attached devices." The list still showed my main PC which at the time was off!!!

I refreshed the list by logging off and on again to the router... checked attached devices, and my main PC was still connected to the wireless network even though its off!!!

Does this mean someone has cracked into my wifi network?

Any tips on making it more secure?? Before I had SSID broadcast disable, and WEP (a 64bit password) installed. My current NICS dont seem to support WPA.

 

[JackMDS]

I would doubt that is an Outside Job. If you are really concern reset the Router and choose a different IP band, and change your WEP key.

You can add a MAC filter to the security as well.

:sun:

 

[PremiumG]

well.... here's the situation now:

changed the WEP key to 128 bit. Still cannot log on with main PC (stuck at acquiring IP address, can't log on to router).

so then I connected my main PC to the router w/ CAT5 cable. No other computers are connected to the network.

BUT!! When I go to attached devices again, someone w/ my MAC address is online wirelessly.

 

[amdskip]

If you are really concerned about security you would seriously consider running a cable to all of your machines. I am not a fan of wireless. It's cool when it works and should really only be used for laptops, etc. but not as a permanant solution for desktops.

 

[mboy]

I would imagine it is more a problem with the router, then someone spoofing your MAC. Especially since the MAC via your wifi card is different then the MAC on your wired NIC>