Wireless connection error message

[fgf]

I've been on the same router for a long time now. It's a Netgear. Today my wife hooked up a PC desktop to the network and now I'm always getting this message:

"The wireless network appears to have been compromised and will be disabled for about a minute."

I know it has to do with my wife's computer, but what is it and how do I fix this? Thanks guys!

 

[fgf]

It happened again today. I think her computer may have a virus.

 

[panzer06]

It happened again today. I think her computer may have a virus.

We had this problem connecting to a Linksys WCG200 ver. 2 (WPA or WPA2) with our MBP running Leopard 10.5.2. It worked with other wireless routers but not this router / gateway combo.

We found Appletalk was enabled on our Wireless NIC under Leopard. Disabling Appletalk made the error go away.

Cheers
Tim