Entra Connect Health & Troubleshooting
Understanding the Concept
Microsoft Entra Connect Health monitors the health of your hybrid identity infrastructure. It provides dashboards for AD FS servers, Entra Connect Sync, and AD DS domain controllers with alerts for issues that could affect user sign-in or synchronization.
Connect Health collects performance data, sync errors, and authentication metrics. It can detect sync conflicts (duplicate attributes), AD FS certificate expiration, and domain controller replication issues before they cause user-facing problems.
Troubleshooting hybrid identity issues requires understanding sync cycles (default 30 min), export errors, filtering rules, and attribute flow. The Synchronization Service Manager and Connect Health portal are key tools for diagnosing problems.
Key Points
- Connect Health monitors AD FS, Connect Sync, and AD DS health
- Alerts for sync errors, certificate expiry, and replication issues
- Risky IP report: Identifies IPs with failed AD FS sign-in attempts
- Sync error investigation: Duplicate attribute conflicts, export errors
- Requires Entra ID P1 license and agent installation
Why This Matters in Real Organizations
Hybrid identity issues are among the most impactful incidents - a sync failure can prevent new users from accessing cloud resources, while an AD FS outage can lock out the entire organization. Proactive monitoring with Connect Health prevents these scenarios.
Common Mistakes to Avoid
Interview Tips
- Explain what Connect Health monitors and its value
- Describe common sync error types and resolution strategies
- Discuss hybrid identity troubleshooting methodology
Exam Tips (SC-300)
- Know Connect Health components and what each monitors
- Understand common sync errors and their resolutions
- Know the default sync cycle interval (30 minutes)
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