Symptoms

When you scan an Active Directory domain, you see the following error


The domain functionality '10' is unknown.


Cause

This can occur when a domain is running in Windows Server 2025 domain functional level



Resolution
Update to the latest version of XIA Configuration.

https://www.centrel-solutions.com/xiaconfiguration/download.aspx



More Information

Support for Windows Server 2025 was added in XIA Configuration version 16.2.