Cornerstone: 504 timeout gateway error on Reporting 2.0 (US Swimlanes 1,2 and 5)

Cornerstone · csod.comImpact: majorResolved2026-09-22 13:41 UTC

Public — what happened

Summary

Our Engineering Team has confirmed the issue to be resolved. We will share a Root Cause Analysis in 7-10 business days. Thank you!

Timeline

Started — 2026-09-22 12:20 UTC
Last update — 2026-09-22 13:41 UTC
Resolved — 2026-09-22 13:41 UTC

Source of record: provider status page. Mirrored as reported; times in UTC.

With SquidGrid — where it starts on the route

Independent path health

The status page is the symptom. SquidGrid measures the paths that reach Cornerstone against their own baselines — whether the routes carrying your traffic degraded, at which handoff, and who owns that stretch.

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Customers get the live Provider Assessment Report for Cornerstone: its full incident track record, what tends to break, and recent public reports of problems.

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Related: Cornerstone status & history. SquidGrid is not affiliated with Cornerstone.