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ITsVISTA KB-Link: KB2583709

Authentication failure or connection to the wrong network when you use Group Policy to deploy 802.1X authentication settings to a client computer that is running Windows Vista or Windows Server 2008

In a network environment, you try to use Group Policy to deploy 802.1X authentication settings to a client computer that is running Windows Vista or Windows Server 2008. In this situation, the client computer incorrectly uses the built-in local default 802.1X profile before the Group Policy profile is applied.

This behavior causes the operating system to start authentication based on the built-in local authentication settings. Therefore, the computer connects to the wrong network or fails authentication instead of successfully connecting to the corporate network.

Note: Disconnecting and then reconnecting the network connection, restarting the Wired AutoConfig (dot3svc) service, or restarting the computer will typically enable the authentication to complete successfully.

There is a download that resolves this issue. See Hotfixes for details.
32-bit Download: Contact Microsoft
64-Bit Download: Contact Microsoft

For more information on this issue, including potential causes, workarounds, and resolutions, see: Microsoft KB Article KB2583709.

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