[macOS Codex App] Prolonged unavailability from Sep 3 to Sep 4, 2026

What version of the Codex App are you using (From “About Codex” dialog)?

26.901.22334 (build 7746)

What subscription do you have?

Unknown / not included in this public report

What platform is your computer?

Darwin 27.0.0 arm64 arm

What issue are you seeing?

User-reported incident: Codex was unavailable beginning September 3, 2026 and remained unavailable into September 4, 2026.

During the affected period, local Codex logs repeatedly showed sanitized symptoms including:

• Codex app-server is not available
• Remote environment is offline
• EPIPE connection failures
• Several configured remote hosts failed to resolve or reported offline

The Codex App later recovered and is currently able to run local tasks. Codex CLI installed alongside it is 0.154.0-alpha.3.

This report does not assert that the entire OpenAI platform was down. Please correlate account and backend telemetry for September 3-4 to determine whether this was a service-side incident, an app-server reconnection failure, or a client/remote-host interaction.

What steps can reproduce the bug?

1. Open Codex Desktop on macOS.
2. Attempt to open or run local and configured remote tasks.
3. Tasks fail to connect or sync, with app-server unavailable and remote-offline errors.
4. Retrying and reopening did not restore reliable availability during the reported window.
5. The app later recovered without a clearly identified user-side remediation.

The failure is no longer consistently reproducible now that service has recovered.

What is the expected behavior?

Codex Desktop should start its app-server, sync the task catalog, and either connect to configured environments or clearly isolate an unavailable remote host without making the overall app unavailable.

Additional information

Timing is user-reported in America/Chicago time: outage began September 3 and recovery was observed September 4, 2026.

Raw logs are intentionally omitted because they contain local paths, usernames, hostnames, and other potentially sensitive identifiers. Sanitized error text is included above. OpenAI staff can request a private diagnostic bundle or account/session identifiers if needed.

Start with the macOS Codex App, app-server, remote-environment errors, and the sanitized logs described in the report. Correlate account and backend telemetry for September 3–4, 2026 to determine whether the cause was a service-side incident, app-server reconnection failure, or client/remote-host interaction; done means identifying the cause and explaining why the app recovered.