# GitLab: GitLab Duo Experiencing Response Errors

- Impact (vendor’s label): minor
- Status: resolved
- Started: 2025-12-16 05:18 UTC · Resolved: 2025-12-16 07:31 UTC · Duration: 2.2 h
- Updates: 3 · Affected components: GitLab Duo
- [Vendor status page: https://status.gitlab.com/pages/incident/5b36dc6502d06804c08349f7/6940eb9a4dd3dd05abe34837](https://status.gitlab.com/pages/incident/5b36dc6502d06804c08349f7/6940eb9a4dd3dd05abe34837)
- [Company: GitLab](https://rewindex.com/company/gitlab.md)

## Timeline of updates

- **investigating** 2025-12-16 05:18 UTC: We have identified a recent change that was causing GitLab Duo to fail to respond for some customers. We are working on a fix.
- **monitoring** 2025-12-16 06:49 UTC: We’ve identified the issue and merged a revert MR to address it. We’re seeing error rates recover and return to normal. For more details, please see: https://gitlab.com/gitlab-com/gl-infra/production/-/issues/21003
- **resolved** 2025-12-16 07:31 UTC: Duo functionality has returned to normal and this incident is now resolved. For more details, please see: gitlab.com/gitlab-com/gl-infra/production/-/issues/21003


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Canonical: https://rewindex.com/company/gitlab/incidents/6940eb9a4dd3dd05abe34837 · Markdown: https://rewindex.com/company/gitlab/incidents/6940eb9a4dd3dd05abe34837.md · JSON: https://rewindex.com/api/v1/companies/gitlab/incidents/6940eb9a4dd3dd05abe34837 · Generated 2026-10-18T10:24:54.637Z