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Picha's avatar
Picha
Copper Contributor
Jun 18, 2025

Defender Cloud Service URLs are not resolvable

When using the MDE Client Analyzer, Defender is not able not connect to the following URLs:

  • https://edr-neu-eu.endpoint.security.microsoft.com/edr/commands/test
  • https://mdav-eu.endpoint.security.microsoft.com/mdav/wdcp.svc/heartbeat
  • https://edr-weu-eu.endpoint.security.microsoft.com/edr/commands/test

The FQDNs are not resolvable. This error is not exclusive on our network. 

Is there something wrong with the DNS entries at Microsoft ?

1 Reply

  • RvanT1105's avatar
    RvanT1105
    Copper Contributor

    We notice the same issue, i have tomorrow a meeting with MS with issues on defender onboarding, and this is one of the questions I have.