This article also describes the most common problems with IAS authentication and authorization, certificate properties, and the process of certificate validation for both wireless client and IAS server certificates.This article assumes background knowledge in IEEE 802.11 wireless LAN and associated security technologies and the components of a Windows-based authentication infrastructure.I have a laptop with a Dell D630 with Wi Fi power switch on the side.
I would certainly ask your brother to use this link before proceeding any further, as we do not assist if the OS is not genuine.
If an authentication requires additional information from the user, such as selecting one of multiple user certificates, a text balloon appears instructing the user.
Are you receiving an endless "Validating Identity" connection status when trying to connect to a wireless network.
For detailed information about how to deploy a wireless LAN using IEEE 802.1X authentication, see Deployment of Protected 802.11 Networks Using Microsoft Windows.
For information about how to troubleshoot wireless connectivity on wireless networks that do not use 802.1X authentication, see Troubleshooting Microsoft Windows XP-based Wireless Networks in the Small Office or Home Office.