Intune Connection Issues in Defender for Endpoint

Curious_Kevin16​ 

Based on the information you’ve already provided — that the licensing, rights, and prerequisites have been checked — I recommend rechecking or proceeding as follows:

1. Licensing, Rights, and Prerequisites
   Ensure that all licensing, rights, and prerequisites are correctly configured.
2. Create the Service-to-Service Connection
   In the Defender portal, go to Endpoints → Microsoft Intune Connection, and set the connection to On.
3. Check the Connection Status in Intune
   From your screenshots, the current status appears as Available. After some time, it should change to Enabled, or after you make a change and Save that under Intune | Endpoint Security | Microsoft Defender for Endpoint
4. Verify or Adjust the Configuration
   Go to Endpoint Security → Microsoft Defender for Endpoint in Intune.
   • Enable: Connect Windows devices version 10.0.15063 and above to Microsoft Defender for Endpoint 
   • If your devices are not enrolled in Intune, turn On the option Allow Microsoft Defender for Endpoint to enforce Endpoint Security Configurations.
   • Make further Configuration as you need.
5. Check the Onboarding Status
   Navigate to Endpoint Security → Endpoint Detection and Response → EDR Onboarding Status.
   Note: You need to have devices managed by Intune to see them listed here.
6. Create an EDR Policy to Onboard Windows Devices
   Create an Endpoint Detection and Response (EDR) policy to onboard your Windows devices.
   Note: You must have devices managed by Intune to see them listed here.
7. Deploy the EDR Policy to Onboard Windows Devices
   • Method 1: Under EDR Onboarding Status, click Deploy preconfigured policy.
   • Method 2 (commonly used): Go to Endpoint Security → Endpoint Detection and Response → Create Policy.
     The Onboarding blob from Connector field should be automatically populated.
8. Additional Checks
   Review related configurations and verify that all integrations between Intune and Microsoft Defender for Endpoint are properly synchronized.

https://learn.microsoft.com/en-us/defender-endpoint/onboarding?source=recommendations

https://learn.microsoft.com/en-us/defender-endpoint/configure-device-connectivity#prerequisites

See this Video also:

https://www.youtube.com/watch?v=z3e9gSBNCJE

Good luck!

Ensure that the account you are logged into is assigned an E5 License. Verify that Intune is set as the MDM authority in Intune --> Tenant Administration --> Tenant Status