I just moved to a new place and was connecting to the wireless router. I connected the first computer successfully having put in the password to the wireless. It has a PCI Linksys wireless G adapter and connected user WPA2-PSK with AES encryption. I went to connect the 2nd computer, which is an older Dell with a Dell Wireless 1450 USB wireless adapter and searched for the available signals. It did not even detect the SSID of the wireless, nor several others that the Linksys did. I had a Belkin Wireless G USB adaptor so I down loaded the drivers and installed it. This time it detected the SSID, but it would not connect saying "validating identity"something about a certificate. I notice in the on the computer which successfully connected, under network authentication, it has WPA2-PSK in the drop down box. The computer that will not connect does not have WP2 in the dropdown box. The computer which will connect, shows under wireless networks the network I am connected "security enabled wireless network (WPA2) so it looks like it auto connected using that type. My question is, are my two USB adapters I have tried to use on the other (non-connected Dell) too outdated to connect because the WPA2 option is not in the dropdown box, or ... can they still be used but the software has to be updated? The Belkin Wireless G (I downloaded what appeared to be the only available drivers from their own website for example).