This seemed to work for me after I disconnected from my router and reconnected again.
However, you may have to go into "view wireless networks", and then choose "change order of preferred networks" in left corner of screen.
After this remove your router from preferred networks list. I had this problem on a laptop (lenovo) which i reinstalled xp on.
This will allow you to pick your router from available wireless network again, and put in your encryption code. I tried all the other stuff like disabling 802.11 settings under properties blah blah ..nothing worked.
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I decided to play with the driver, I uninstalled and then proceeded to install the driver and wallahh.... I have recently started having the Validation Identity problem.
It says something about windows not finding a certificate.
The weird part is that I was using WPA TKIP with the passphrase and it was working fine.
I have a laptop with a Dell D630 with Wi Fi power switch on the side.
Because I have a switch to disable the Wifi power, this seemed easier/safer, and it worked. thanks, Solution: remove whatever "preferred networks" are displayed in wireless netwok card's property page, n click ok. happens when u switch to a new router or use a new different SSID.
Are you receiving an endless "Validating Identity" connection status when trying to connect to a wireless network.