4822: NTLM authentication failed because the account was a member of the Protected User group
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This event is new to Server 2012 R2. It does not appear in earlier versions.
I haven't been able to produce this event. Have you? If so, please start a discussion (see above) and post a sample along with any comments you may have! Don't forget to sanitize any private information.
NTLM authentication failed because the account was a member of the Protected User group. Account Name: %1 Device Name: %2 Error Code: %3
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