Cannot connect to wireless network xp validating identity
To let Windows XP pre-SP2 system provides support for WPA Wi Fi network security encryption method, download and install KB815495 (KB article), or upgrade to Windows XP SP2.To provides operating system support for WPA2, download and install the newer KB917021 Wireless Client Update for Windows XP with Service Pack 2 (validation required at Microsoft Download Center, or user can direct download the Windows XP-KB917021-v3-x86-ENU.exe) or older KB893357 Wi-Fi Protected Access 2 (WPA2) and Wireless Provisioning Services Information Element (WPS IE) update for Windows XP SP2 (validation required at Microsoft Download Center, or user can direct download the Windows XP-KB893357-v2-x86-ENU.exe) or more recommended, upgrade to Windows XP SP3, which now incorporates the WPA2 hotfix and implements the WPA2 IEEE 802.11i wireless networking standard natively.If you just bought the wireless network adapter recently, chance are the WLAN adapter will support WPA and WPA2 by default.
If you have an old wireless card that the only option available is WEP, and has no updated driver for it, then WPA/WPA2 won’t work simply because the WLAN adapter does not support it.If you're having trouble connecting to a wifi network, you can sometimes fix the problem by removing and re-adding that profile.Follow the instructions below to remove the network, then connect to it as a 'new' network. For more info see Delete a network connection in Windows 7 and Windows Server 2008 R2. Find the network on the list, right-click it, and select When the network connects and Windows asks what type of network, pick Public.WPA2 certification is now mandatory for network devices to be certified by Wi-Fi Alliance as “Wi-Fi CERTIFIED”.The Windows XP (with or without SP1) system does work properly and connect perfectly to the wireless network if the router, WAP (wireless access point) is configured to enable and use WEP 64-bit/128-bit/225-bit security encryption, which is less secure than WPA2 and WPA.