When connecting to Windows Server 2025 (Preview) using LDAP simple bind, the server rejected the bind. 「The server requires binds to turn on integrity checking if SSLTLS are not already active on the connection」was displayed as an error message.

If you change the LDAP server signing requirement from the default value to disabled according to the page below, LDAP simple bind will succeed.
https://learn.microsoft.com/ja-jp/troubleshoot/windows-server/active-directory/enable-ldap-signing-in-windows-server 

Is Enforcing LDAP Signing enabled by default starting with Windows Server 2025?
If so, where is the announcement about enabling LDAP server signing requirements?

​When connecting to Windows Server 2025 (Preview) using LDAP simple bind, the server rejected the bind. 「The server requires binds to turn on integrity checking if SSLTLS are not already active on the connection」was displayed as an error message.If you change the LDAP server signing requirement from the default value to disabled according to the page below, LDAP simple bind will succeed.https://learn.microsoft.com/ja-jp/troubleshoot/windows-server/active-directory/enable-ldap-signing-in-windows-server Is Enforcing LDAP Signing enabled by default starting with Windows Server 2025?If so, where is the announcement about enabling LDAP server signing requirements?  Read More

​