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Outage in Cornerstone

Unable to login to the portal : US SL 5

Resolved Major
September 01, 2026 - Started 2 days ago - Lasted about 1 hour
Official incident page

Incident Report

Summary AI Generated

On September 1, 2026, Cornerstone clients hosted on the US SL5 swimlane were unable to access the application due to a backend issue that disrupted login functionality. The outage lasted approximately 45 minutes, beginning at 6:47 AM Pacific Time, with service fully restored by 6:56 AM Pacific Time. The Engineering team identified and resolved the root cause, with subsequent monitoring confirming the fix remained stable.

Clients on US SL5 may encounter errors or issues when attempting to log in to Production. Our Engineering team has identified the root cause on the backend and is actively working on a fix as the highest priority. We will continue to provide regular updates as they become available.
Components affected
Cornerstone Uptime

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Latest Updates ( sorted recent to last )
RESOLVED 2 days ago - at 09/01/2026 02:43PM

The CSOD Technology Team observed a service disruption on US SL5. The issue began at 6:47 AM Pacific Time and service was restored at 6:56 AM Pacific Time. During this time, clients with portals on this swimlane were unable to access the application.

Following a brief period of monitoring, the fix remains stable and the service continues to operate as expected.

MONITORING 2 days ago - at 09/01/2026 02:15PM

We have received confirmation from the CSOD Engineering team that the issue has been fixed and the service has been fully restored.

Our Engineering team is currently monitoring the fix to ensure its reliability and stability. We will provide further updates if there are any additional developments.

INVESTIGATING 2 days ago - at 09/01/2026 02:02PM

Clients on US SL5 may encounter errors or issues when attempting to log in to Production. Our Engineering team has identified the root cause on the backend and is actively working on a fix as the highest priority. We will continue to provide regular updates as they become available.

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