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MC1455017 — New Defender for Identity health alert for missing domain controller network traffic

MC1455017Microsoft Defender XDRstayInformedUpdated: 14 August 2026

Microsoft Defender for Identity now includes a health alert for missing domain controller network traffic, helping administrators detect traffic collection issues affecting visibility. The alert appears in sensor health tabs, requires no pre-rollout action, and guides troubleshooting if triggered after rollout. No impact on end users or compliance.

Applies to: Microsoft Defender XDR
Source: mc.merill.net — data via Merill Fernando's open archive (MIT).