Validating identity xp
For detailed information about a Windows-based authentication infrastructure, see Wireless Deployment Technology and Component Overview.
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.
In order to configure the connection back to Automatic, edit the eduroam profile, go to the Connection tab and check Connect when this network is in range: Figure 14: Setting Automatic connection  = If the Wireless Network Connection icon is not present, this may be due to the wireless network manager of your vendor's card taking over from Windows' built-in one (Wireless Zero Configuration).
Please refer to the documentation of your vendor's card in order to turn it off as this may interfere with the procedure here documented.
The Network Connections folder and the notification area icons provide information about the state of the authentication.
If an authentication requires additional information from the user, such as selecting one of multiple user certificates, a text balloon appears instructing the user.
Uncheck "The key is provided for me automatically" and enter and confirm your Network key.
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Home Edition, etc.): You have now succesfully configured Windows XP to connect to eduroam network.In a few simple steps you can bypass Windows Validation, and the resulting "Limited or No Connectivity" issue on an encrypted connection.In the next window click on the "Authentication" tab, Make sure "Enable IEEE 802.1x...." checkbox is UN-Checked, the rest of this window should be greyed out.I'd start by reviewing the event logs on your IAS server for reasoning as to why it's not authenticating your client.The below guide has been tested on MS Windows XP Professional and is based on Windows' default wireless configuration tool (Wireless Zero Configuration).