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I needed to do a mass password change on imported accounts and decided to do this with Powershell. For some reason (maybe because I am using PowerShell 2.0) I got an unexpected error when using the Password property or the SetPassword method (RandomPassword is a function I wrote that generates Random passwords the meet the Complexity Requirements):
$user.Password = RandomPassword
The following exception occurred while retrieving member “CommitChanges”: “Logon failure: unknown user name or bad password.
I first thought that my Password Generator function created a password that didn’t meet the Complexity Requirements but settings the same password through Active Directory Users & Computers was no problem.
I also tried the SetPassword method but it has the same result. The only working way was to use the Invoke method of PSBase:
I also verified if using a simple password gave another error:
Exception calling “Invoke” with “2” argument(s): “The password does not meet the password policy requirements. Check the minimum password length, password complexity and password history requirements. (Exception from HRESULT: 0x800708C5)”
I don’t know why the Password Property and SetPassword Method do not work but I guess it’s a problem in PowerShell’s implementation of the ADSI provider. If someone has the answer please leave a comment!
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