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Microsoft has released optional out-of-band (OOB) updates to fix a known issue triggering Kerberos sign-in failures and other authentication problems on enterprise Windows domain controllers after installing cumulative updates released during November's Patch Tuesday.
It is just a few days since Microsoft acknowledged problems with Kerberos authentication. Affecting Windows Servers with the Domain Controller role, the issues mean that domain user sign in could fail, Remote Desktop connection could fail to connect, and more.
The problem was caused by cumulative updates made available during November Patch Tuesday
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