Both of these authentication methods provide access to SQL Server 2008 and its resources. Lets first examine the differences between the two authentication modes. Windows Authentication Mode ...

Another advantage to Windows logins is the extra security support for the Kerberos authentication protocol providing mutual authentication. This means that the server is authenticated as well as ...

According to Redmond, these authentication issues impact both client (Windows 11, version 24H2) and server (Windows Server 2025) platforms, albeit only in some niche scenarios.

In April, Microsoft fixed another known issue causing auth problems on Windows 11 and Windows Server 2025 systems using the Kerberos PKINIT security protocol when Credential Guard is enabled.