The "Secured password (EAP-MSCHAP v2)" entry is the only authentication method that appears in the Select Authentication Method list in the Group Policy Management Console in Windows Server 2008 or in Windows Vista

When you use the Group Policy Management Console to configure a Group Policy object for wireless access, you experience the following symptom.

When you click Microsoft: Protected EAP (PEAP) in the Select a network authentication method list, and then click Properties, the Select Authentication Method list appears in the Protected EAP Properties dialog box as expected. However, Secured password (EAP-MSCHAP v2) is the only item that is displayed in this list. When you click the drop-down arrow to expand the list, no other authentication methods are displayed. Therefore, you cannot select an alternative authentication method.

You experience this issue when you use the Group Policy Management Console in Windows Server 2008 or in Windows Vista.

Note For more information about how to view the Select Authentication Method list, see the "More Information" section.

This issue occurs because the Select Authentication Method list contains an additional control to scroll through the available authentication methods. However, because this control is smaller than the drop-down arrow that appears at the right side of the Select Authentication Method list, the control may be difficult to locate.

To resolve this issue, use the arrows on the additional control in the Select Authentication Method list to select an authentication method. To do this, follow these steps:

1. In the Protected EAP Properties dialog box, click the drop-down arrow to open the Select Authentication Method list.
   
   Note For more information about how to locate this dialog box, see the "More Information" section.
2. At the right side of the opened list, click the up arrow or the down arrow that appears. You can use these up-arrow and down-arrow controls to scroll through the list of available authentication methods.
   
   Note The up-arrow and the down-arrow icons are one-half the size of the drop-down arrow icon that appears at the right side of the Select Authentication Method list.

Steps to reproduce the issue

1. On a Windows Server 2008-based computer, start the Group Policy Management Console. To do this, click Start, click Run, type gpmc.msc, and then click OK.
2. Right-click a Group Policy object, and then click Edit.
3. In the Group Policy Management Editor window, expand Computer Configuration, expand Windows Settings, expand Security Settings, right-click Wireless Network (IEEE 802.3) Policies, and then click Create a New Windows Vista Policy.
4. In the New Vista Wireless Network Policy Properties dialog box that appears, click the General tab, click Add, and then click Infrastructure.
5. In the New Profile Properties dialog box that appears, click the Security tab, leave the Microsoft: Protected EAP (PEAP) option selected in the Select a network authentication method list, and then click Properties.
6. In the Protected EAP Properties dialog box, click the drop-down arrow to open the Select Authentication Method list.

Notice that only the Secured password (EAP-MSCHAP v2) entry appears.

For more information about the Group Policy Management Console, visit the following Microsoft Web site: