When performing RPC on Active Directory accounts, the following error may occur:
Change password failed: Unknown. (NERR_PasswordPolicySettings)
This is likely to occur due to a minimum password age policy on the domain. If the minimum password age is set to 1 day or greater, and due to testing, the password has already been changed once, a follow up password change will violate the domain policy.
If you need to change the user's password more than the policy allows, change their policy so they are not subject to minimum password ages.
Article ID: 116, Created On: 10/14/2010, Modified: 10/14/2010