Windows 8.1 cannot manage Windows credentials when joined to Samba 4.1 NT-style domain

Using a Windows 8.1 client that has been updated with the Windows Security update KB2992611 or KB3000850 which has also been joined to an NT-Style domain, the customer is not able to use the Windows Credential Manager application. 

This would include for example, a SLES Samba NT-Style PDC.

When they attempt to use the Windows Credential Manager application they get the following error:

Error code: 0x80090345
Error Message: The requested operation cannot be completed. The computer must be trusted for delegation and the current user account must be configured to allow delegation. 

This error doesn't occur with a system that is not part of this NT-Style domain.
It also does not occur if the workstation has not had Windows Security Update KB2992611 or KB3000850 applied even though it is part of the NT-Style domain.

This is a known issue for Microsoft.

In this Microsoft document you will find their suggested workaround.
https://support.microsoft.com/en-us/kb/3000850

Here is some of the information from that document.

Workaround
To work around this problem, set the value of the ProtectionPolicy registry entry to 1 to enable local backup of the MasterKey instead of requiring a RWDC in the following registry subkey:
HKEY_LOCAL_MACHINE\Software\Microsoft\Cryptography\Protect\Providers\df9d8cd0-1501-11d1-8c7a-00c04fc297eb 

Based in that information, it is obvious that this would need to be done on each Windows 8.1 client that has been updated with KB2992611 or KB3000850.