LCS Service Degradation Restored | Unable to Access AX 2012 Projects

More Info:  Impacted users may have received an error message stating, “VOICE EXPIRED.”

Final Status: After further review of the error logs, we identified a configuration error that occurred after a recent deployment. We updated the affected infrastructure, restoring the ability to access AX 2012 projects.

Update 3: We are continuing to collect logs and review telemetry to determine the cause of this issue.

Update 2: Our refresh of front-end servers has completed successfully, and we have verified that there are no certification issues. We are continuing our investigation to determine the cause of this issue.

Update 1: After investigation, it was discovered that calls to the server may be failing for impacted users. We are currently in the process of restarting front-end servers and monitoring service health. Concurrently, we are reviewing certificates to determine if there is any issue with authentication.

Incident Start Time: Sunday, April 15, 2018, 9:59 AM UTC

Incident End Time: Monday, April 16, 2018, 13:55 PM UTC

Preliminary Root Cause: After a recent deployment, we identified a misconfiguration on the infrastructure responsible for accessing AX 2012 projects.

Next Steps: We're reviewing our deployment and provisioning procedures to help prevent similar problems in the future.

This is the final update on the incident.

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