check this out. on my linskys WRT160N, I upgraded my encryption from WPA to WPA2 personal. what's WPA enterprise? I had Radius listed as encryption too. I filtered only mac addresses of my laptop, desktop usb G card to connect, and my work laptop that I brought home tonight to test it out. I also put my network as "not broadcasting" I think my toshiba laptop wifi card is a POS too. I triple checked the mac address of all three pcs, passwords, and settings in xp. The toshiba laptop would not connect to my network. yet my work laptop and USB G card both connected without problems. The toshiba laptop would say "automatic" but it would not tell me it was connected, and had a red x in the system tray bar. oh yeah, I had to turn off hidden broadcasting, for some reason my wifi usb G card had a hard time finding my network even when I told it the name of my network and password and "connect to this network even if it is not broadcasting" now that I have filtered mac addresses and upgraded encryption, I guess I'll let it broadcast. the packets sent and received are in the 5k range. an hour ago, it was 200k packets sent and received. within 15 minutes of me finishing all this, some dude started knocking on my apartment door at 10pm. my wife was freaked out. Since I'm playing around with my network settings, I noticed one of my unknown neighbors network went from unsecured to WPA2 also, so I'm suspicious.