Session failures in the US region

Summary

Session failures in the US region

Service in the US region is restored and new sessions are succeeding. The cause was a misconfiguration of the high-availability mechanism of our US traffic-routing layer, which allowed both of its redundant instances to be taken offline at the same time during an automatic capacity scale-up. We corrected the configuration so the routing layer can no longer be displaced by scale-ups and applied the fix across all production regions.

• Started

  Sep 23, 2026 · 9:37 AM

• Resolved

  Sep 23, 2026 · 8:47 AM

• Duration

  50m

• Severity

  Major

• ◐

  Investigating

  Sep 23 · 9:37 AM Anam

  We are investigating failures to start new sessions in our US region. Other regions are not affected.

• ✓

  Resolved

  Sep 23 · 9:37 AM Anam

  Service in the US region is restored and new sessions are succeeding. The cause was a misconfiguration of the high-availability mechanism of our US traffic-routing layer, which allowed both of its redundant instances to be taken offline at the same time during an automatic capacity scale-up. We corrected the configuration so the routing layer can no longer be displaced by scale-ups and applied the fix across all production regions.