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This issue occurs if Device Registration Service (DRS) is not initialized on a server that belongs to a forest that has multiple global catalogs. When this issue occurs, you receive the following error message:

AD FS Proxy could not be configured. Unable to retrieve proxy configuration data from the Federation Server.


This issue occurs when finding DRS objects times out. The Active Directory Federation Services (AD FS) service tries to connect to every global catalog in the forest during DRS discovery. However, the DRS objects cannot be found because DRS is not initialized. Therefore, AD FS proxy times out.


To resolve this issue, install the December 2014 update rollup for Windows RT 8.1, Windows 8.1, and Windows Server 2012 R2.


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


See the terminology that Microsoft uses to describe software updates.

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