Windows defender connection failed

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In the log list, under Log Summary, scroll until you see Microsoft-Windows-SENSE/Operational. Open Event Viewer and find the Microsoft Defender for Endpoint service event log:Ĭlick Start on the Windows menu, type Event Viewer, and press Enter. You can then use this table to determine further troubleshooting steps. You can review event IDs in the Event Viewer on individual devices.įor example, if devices aren't appearing in the Devices list, you might need to look for event IDs on the devices. Want to experience Microsoft Defender for Endpoint? Sign up for a free trial. Review events and errors using Event Viewer