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LAN MANGER network authentication

Carsten Thomsen 1 Reputation point
2023-08-24T10:20:50.8466667+00:00

We have a domain with 2008,2012,2016 and 2019 servers.

The domain policy for LAN manager authentification is set to level 4

What will happen is this setting is changed to 5, which is recommended today ?

Windows for business | Windows Server | User experience | Other
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  1. Anonymous
    2023-08-24T13:26:28.2766667+00:00

    You could test beforehand with some auditing.

    https://learn.microsoft.com/en-us/troubleshoot/windows-server/windows-security/audit-domain-controller-ntlmv1

    --please don't forget to upvote and Accept as answer if the reply is helpful--

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