Microsoft 365 Alert – Service Degradation – Microsoft Defender XDR – Users may have experienced devices intermittently entering a non-reporting state in Microsoft Defender for Endpoint – RESOLVED

Announcements Arpan Das

19/06/2026 09:31:00 AM

NHSmail Reference: INC46855601

Microsoft Reference: DZ1395542

Issue Status: RESOLVED

Issue Description: Users may have experienced devices intermittently entering a non-reporting state in Microsoft Defender for Endpoint.

Current Update: 19/06/2026 09:32:00 AM –Microsoft has investigated a problem with the Microsoft Defender for Endpoint service in which users may have experienced devices intermittently entering a non-reporting state in Microsoft Defender for Endpoint, and they have confirmed that service is now restored. They will provide additional information in a closure summary within the “History” section of the “Service health” dashboard shortly.