major✓ Resolved

Authentication errors for some users

OpenAI•2026-10-21 22:36 UTC

Status

resolved

Duration

Duration unavailable

Updates

Coverage

0 articles

INCIDENT TIMELINE

✓ Resolved2026-10-20 17:35 UTC

This incident has been resolved.

resolved2026-10-21 22:36 UTC

On October 20, from 9:35 to 10:35 a.m. PDT, some users near Illinois experienced authentication errors with the API, ChatGPT, and Codex. We rolled back a configuration change, and service was restored.

investigating2026-10-21 22:36 UTC

Some users near Illinois experienced authentication errors with the API, ChatGPT, and Codex.

📊 TECHNICAL DETAILS

Internal ID

e881206b-9380-4784-acac-706c194fe4bb

External ID

01M5G9QQ9V4CYDWFRYF9BWZ5GG

🕐 First reported

2026-10-21 22:36 UTC

🔄 Last Updated

2026-10-21 23:03 UTC

✓ Resolved

2026-10-20 17:35 UTC

MAJOR

Impact Level

Duration unavailable

Total Duration

Status Updates

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