ADFS authentication issue for Active Directory users when extranet lockout is enabled

Applies to: Windows Server 2012 R2 DatacenterWindows Server 2012 R2 EssentialsWindows Server 2012 R2 Standard


Consider the following scenario:
  • You have a Windows Server 2012 R2 Active Directory Federation Services (ADFS) server and multiple Active Directory domain controllers.
  • This ADFS server has the EnableExtranetLockout property set to TRUE.
  • An Active Directory user is created on a replica of a domain controller, and the user has never tried to log in with a bad password.

In this scenario, the Active Directory user cannot authenticate with ADFS, and the exception Microsoft.IdentityServer.Service.AccountPolicy.ADAccountLookupException is thrown.


This issue occurs because the badPwdCount attribute is not replicated to the domain controller that ADFS is querying.


We have released updates and hotfixes for Windows Server 2012 R2.

Update information

The following update rollup is available for Windows Server 2012 R2.

Hotfix information

A supported hotfix is available from Microsoft Support. However, this hotfix is intended to correct only the problem that is described in this article. Apply this hotfix only to systems that are experiencing the problem described in this article. This hotfix might receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next software update that contains this hotfix.

If the hotfix is available for download, there is a "Hotfix download available" section at the top of this Knowledge Base article. If this section does not appear, contact Microsoft Customer Service and Support to obtain the hotfix.

Note If additional issues occur or if any troubleshooting is required, you might have to create a separate service request. The usual support costs will apply to additional support questions and issues that do not qualify for this specific hotfix. For a complete list of Microsoft Customer Service and Support telephone numbers or to create a separate service request, go to the following Microsoft website: Note The "Hotfix download available" form displays the languages for which the hotfix is available. If you do not see your language, it is because a hotfix is not available for that language.


To apply this update, you must have update 2919355 installed on Windows Server 2012 R2.

Restart requirement

You may have to restart the computer after you apply this hotfix.

Hotfix replacement information

This hotfix does not replace any previously released hotfix.


Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.


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