OpenAI: Authentication errors for some users
Affected components: LoginLoginCodex WebCLIVS Code extensionCodex API
Timeline of updates
- investigatingEdited
Some users near Illinois experienced authentication errors with the API, ChatGPT, and Codex.
- resolvedEdited
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.
Changes Rewindex caught on this incident
- Major incident: Authentication errors for some API users
- Incident silently edited: Authentication errors for some users
Archive proof
Rewindex commits each version of an incident it captures to a daily checkpoint, chains it to the day before, and has the checkpoint timestamped by FreeTSA and DigiCert. That proves these records existed by then and have not been changed since, by anyone, Rewindex included.
How the archive is checked, and what it cannot prove.
First version captured
In the 2026-10-21 checkpoint, timestamped by FreeTSA and DigiCert on . Record hash
8e843579e7743c2b…Version 2 captured
In the 2026-10-21 checkpoint, timestamped by FreeTSA and DigiCert on . Record hash
f1dfbb01b58418f4…
Impact, status and times are the vendor’s own, as last archived. View on status.openai.com (opens in new tab).
Cite this
Status incident (vendor impact label: major) posted by OpenAI, started 2026-10-20 16:35 UTC, resolved after 1.0 h, 2 update(s); edited after publishing.
- Title
- Authentication errors for some users
- Vendor
- OpenAI
- Date
- URL
- https://rewindex.com/company/openai/incidents/01M5G9QQ9V4CYDWFRYF9BWZ5GG
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