Event ID 660 — Trust Policy and Configuration

  • Article

Applies To: Windows Server 2008 R2

The Active Directory Federation Services (AD FS) trust policy file defines the set of parameters that a Federation Service requires to identify partners, certificates, account stores, claims, and the various properties of these entities that are associated with the Federation Service.

Event Details

Product: Windows Operating System
ID: 660
Source: Microsoft-Windows-ADFS
Version: 6.1
Symbolic Name: TrustPolicyLoadException
Message: The Federation Service encountered an error while loading the trust policy. An unexpected exception was encountered.

If this error occurs during startup of the Federation Service, the Federation Service will not be able to start and all requests to the Federation Service will fail until the configuration is corrected. If this error occurs while the Federation Service is running, the Federation Service will continue to use the last policy that was loaded successfully, and it will attempt to load the policy again in %1 minutes.
Retry period: %1

User Action
If this error persists, enable the AD FS troubleshooting log.

Additional Data
Exception information:
%2

Resolve

Review the settings for the trust policy

This error occurs when the trust policy file is loaded. Possible causes include the following:

  • The XML file for the trust policy (trustpolicy.xml) is not valid.
  • The user does not have permission to access the trust policy.
  • The path to the trustpolicy.xml file is not valid.

To perform these procedures, you must be a member of the local Administrators group, or you must have been delegated the appropriate authority.

To confirm that the trustpolicy.xml file is valid:

  1. On a federation server, click Start, point to Administrative Tools, and then click Active Directory Federation Services.
  2. If no error is presented when the snap-in is completely loaded, the trustpolicy.xml file is valid. The federation server runs a basic format validation on the trustpolicy.xml file each time that you open the Active Directory Federation Services snap-in.

To check user access control settings for the trust policy:

  1. On a federation server, click Start, point to Administrative Tools, and then click Active Directory Federation Services.
  2. In the console tree, right-click Federation Service, click Properties, record the trust policy location value that is specified in Trust policy file, and then click OK.
  3. If the trustpolicy.xml file is located on a server other than the federation server, log on to that server as an administrator (in case you need to make changes), and then open Windows Explorer.
  4. Locate the folder where the trustpolicy.xml file is stored, right-click the trustpolicy.xml file, and then click Properties.
  5. Click the Security tab, and then confirm that the appropriate users have at least read-only permissions to the file.
  6. If the users are accessing the file through a network share, confirm that permissions for the users to access the share are at least read-only permissions.

To confirm that the path to the trustpolicy.xml file is set correctly:

  1. On a federation server, click Start, point to Administrative Tools, and then click Active Directory Federation Services.
  2. In the console tree, right-click Federation Service, click Properties, and confirm that a valid location for the trustpolicy.xml file is specified in Trust policy file.

If this error persists, enable the Active Directory Federation Services (AD FS) troubleshooting log. For more information about logging, see Troubleshooting Active Directory Federation Services (https://go.microsoft.com/fwlink/?LinkId=80353).

Verify

Verify that you can access the Active Directory Federation Services (AD FS)-enabled application from a client browser and that the resource can be accessed.

Trust Policy and Configuration

Active Directory Federation Services