3 out of 6 Intune-enrolled devices not showing up in Microsoft Defender, stuck on Not applicable status

Microsoft 365 and Office
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I've enrolled 6 devices in Intune, but only 3 show up as onboarded in Microsoft Defender. The remaining 3 devices display "Not applicable" in Intune. I'm stumped. One device's status says "Onboarding blob from Connector is Not applicable". Can someone help me resolve this ASAP?

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Microsoft Defender & Intune Issues: Troubleshooting Steps

Hey there Having trouble with Intune and Microsoft Defender not syncing up can be frustrating. Let’s dive in and try to solve this issue step by step. Here’s a systematic approach to help you identify and resolve the problem:

1. Verify the Devices’ Status in Intune

  • Check the Device Profile settings in Intune to ensure the devices are properly assigned to the necessary policies. Ensure they are assigned to the right groups and are not in a state of pending or error.
  • Also, verify if the devices are showing up under Devices > All devices in the Intune console.

Device-Specific Troubleshooting

  • For the device saying “Onboarding blob from Connector is Not applicable”, try re-registering the device in Microsoft Defender:
    1. On the device, open the Microsoft Defender for Endpoint application.
    2. Click on the … at the top right, then select Settings.
    3. Scroll down and click on Unregister.
    4. Reboot the device.
    5. After the reboot, re-register the device by clicking on Register.
  • For the other two devices that aren’t showing up, check their Event Viewer logs (WindowsLogs > Application) for any error messages related to the Microsoft Defender for Endpoint.

Additional System-Wide Checks

  • Confirm that the Microsoft Defender for Endpoint connector is properly configured and active in Intune:
    1. In the Intune console, navigate to Endpoint security > Microsoft Defender for Endpoint.
    2. Check that the Connector status is Active.
  • Also, ensure that the Azure AD applications for Microsoft Defender for Endpoint are properly configured and have the necessary permissions.

Final Steps

  • After trying these steps, wait for at least 30 minutes to allow any changes to propagate.
  • Re-check the device status in Intune and Microsoft Defender to see if the issue is resolved.

If you’ve followed these steps and the issue persists, please provide more details about the error messages you’ve encountered, and we’ll be happy to help you investigate further.