Page 4 - Domain Controller News Today

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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 Novembers Patch Tuesday.

Microsoft has released out-of-band Windows updates in order to patch issues in Kerberos authentication on Domain Controllers. The updates need to be installed manually via Microsoft Update Catalog.

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

Security researchers say Microsoft has been cautious with this Kerberos issue, promising a fix in a couple of weeks, but point out that the issue is likely buried in complex OS code.

The Kerberos authentication protocol is having issues, and a fix is weeks away.

The torrent of problematic updates for Windows shows no signs of drying up. Since Patch Tuesday this month, Microsoft has already confirmed a Direct Access connectivity issue in various versions of Windows (which it sort of fixed by rolling back the update), now the company has issued a warning that this months updates are also causing problems with Kerberos authentication.

Microsoft has issued a notification about new known issues in Windows 10 and 11. Users might experience various bugs and instabilities after installing updates released earlier this month.

Microsoft is investigating a new known issue causing enterprise domain controllers to experience Kerberos sign-in failures and other authentication problems after installing cumulative updates released during this months Patch Tuesday.