This is driving me nuts...to the point that I have called Cisco. Dell Dimension 9200 with WMP54G v4.1 188.8.131.52 drivers, XP SP2, Wireless Zero Config, WPA2 patch installed. It will connect to a WAP54G running WPA2-Personal-AES, but not to a Cisco 1240AG running WPA2-Personal-AES (AES CCMP + TKIP + WEP 128 bit as Cisco calls it) I have a Dell Latitude D600, Vista RTM, Vista drivers for a Broadcom ABG card. Can connect to both APs without a problem. Verified that they both show WPA2-PSK-AES. When I just let Windows "figure it out" on the XP box it does indeed see the network as a WPA2-PSK-AES as I assume it should. It will only say Automatic and never connect. Is there something stupid I am missing?