[Samba] Can Logon & Join NT4-style Domain, Can't Change Password

Bill Baird bill.baird at phoenixmi.com
Wed Aug 17 19:30:52 UTC 2016

Uninstalling MS16-101 fixed our issue.


I ran "wusa /uninstall /kb:3167679", rebooting, and now we are back to

On Wed, Aug 17, 2016 at 1:43 PM, Bill Baird <bill.baird at phoenixmi.com>

> Hi All,
> Our users started having issues late last week when trying to change their
> passwords. They receive the following message:
> "The system detected a possible attempt to compromise security. Please
> ensure that you can contact the server that authenticated you."
> Client computers are running Windows 7 Ultimate & Enterprise x64. We are
> still running (I know, I know) and NT4-style PDC domain (DC is running
> Samba 3.6.24-45).
> Users are able to use network drives normally. We can add computers to our
> domain successfully.
> From some searching, this appears to sometimes happen when a domain
> running AD also has an NT4-style server available and the system is trying
> to use the NT4-style server instead of AD? I'm just not sure how this could
> be possible, since we don't have any servers that are configured this way
> (only two people have access, and definitely didn't modify things).
> I am also seeing some results saying it might be a DNS issue. I have done
> some testing and as far as I can tell, my DNS & WINS is operating as
> expected.
> Has anyone seen this before? Or have any ideas on what I can do to
> troubleshoot?
> Thanks!
> --Bill

*Bill Baird*
Chief Technology Officer
Office: 845-876-8228 x311
Mobile: 203-545-0437

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