The computer must be trusted for delegation and the current user account must be configured to allow delegation

Problem:
When running a SQL application you got error:
The requested operation cannot be completed. The computer must be trusted for delegation and the current user account must be configured to allow delegation. System.Security.Cryptography.CryptographicException: The requested operation cannot be completed. The computer must be trusted for delegation and the current user account must be configured to allow delegation.

Solution:
In the Active Directory Users and Computers snap-in, enable the SQL Server service account to be trusted for delegation.
http://technet2.microsoft.com/WindowsServer/en/library/bef202b0-c8e9-4999-9af7-f56b991a4fd41033.mspx?mfr=true



Reference reading:
How do I configure accounts so that they are trusted for delegation in a Windows Server 2003 Enterprise Edition environment?
http://windowsitpro.com/article/articleid/79498/jsi-tip-7359-how-do-i-configure-accounts-so-that-they-are-trusted-for-delegation-in-a-windows-server-2003-enterprise-edition-environment.html