The Windows Server 2008 and Windows Vista Failover Cluster Validation process fails, and you receive an error message when the “System cryptography: Use FIPS compliant algorithms for encryption, hashing and signing” policy is enabled
The following policy is enabled on a Windows Server 2008-based computer or on a Windows Vista SP1-based computer:
System cryptography: Use FIPS compliant algorithms for encryption, hashing and signing
When you open the Failover Cluster Management window on this computer to perform the “Validate a Configuration” task, the validation process fails. Additionally, you receive the following error message:
An error occurred while performing validation. Testing will be cancelled. This implementation is not part of the Windows Platform FIPS validated cryptographic algorithms.
For more information on this issue, including potential causes, workarounds, and resolutions, see: Microsoft KB Article KB960334.