Why am I unable to connect to Cloud Directory server due to a trust failure?
In this article:
Issue description
Prerequisites
Possible causes
Resolution
Related topics and articles
How to reach support
Issue description
You may encounter a trust failure error when ADAudit Plus attempts to connect to the Cloud Directory server. This typically prevents successful authentication or communication with Entra ID (formerly Azure AD) services.
Possible causes
A firewall is blocking outbound HTTPS traffic to required Entra ID domains.
Network proxy configurations may interfere with TLS/SSL certificate validation.
Prerequisites
Ensure administrative access to firewall settings or proxy servers.
ADAudit Plus must be installed and accessible.
Internet connectivity is required from the ADAudit Plus server to the Entra ID endpoints.
Resolution
1. Check firewall settings
If a firewall is in place, ensure the following domains are allowlisted or exempted from filtering and SSL inspection:
2. Test connectivity
After applying the necessary firewall exemptions, reattempt the Entra ID configuration or event collection in ADAudit Plus to confirm the issue is resolved.
Related topics and articles
When and how to reach support
If the problem persists after following all steps, collect the following logs from the ADAudit Plus server:
serverout.txt
catalina.txt
wrapper.log
New to ADSelfService Plus?
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