# Travis CI: Unreliable or intermittent network connectivity for Linux and Windows builds

- Impact (vendor’s label): major
- Status: resolved
- Started: 2019-08-06 17:55 UTC · Resolved: 2019-08-07 14:40 UTC · Duration: 21 h
- Updates: 6 · Affected components: Builds Processing - Linux and Windows Builds, Linux and Windows Builds
- [Vendor status page: http://stspg.io/fab9d5ecd](http://stspg.io/fab9d5ecd)
- [Company: Travis CI](https://rewindex.com/company/travis-ci.md)

## Summary

Travis CI reported a major degradation causing unreliable, intermittent or slow network connectivity for Linux and Windows builds from 2019-08-06 17:55 UTC to 2019-08-07 14:40 UTC, lasting 20 h 45 min. The vendor identified NAT gateway updates as the issue and fully reverted them, restoring normal build network performance and reliability. _(machine-written, sol)_
## Timeline of updates

- **investigating** 2019-08-06 17:55 UTC: We are receiving reports of Linux and Windows builds where network connectivity is unreliable, intermittently working or slow. We are opening this incident to acknowledge the issue and also keep you posted on our work to solve it. Thank you for your patience.
- **investigating** 2019-08-06 17:55 UTC: We are continuing to investigate this issue.
- **identified** 2019-08-07 07:54 UTC: We've identified an issue with the latest changes to update the NAT gateways. While this change was meant to improve maintainability, we are rolling it back due to the degraded network performance. We're expecting this provides network speed improvements within the next hour. We will provide additional updates at the top of the hour. Thank you
- **identified** 2019-08-07 10:37 UTC: At this point, we've reverted half of the NAT gateway updates and a 50% of the Linux and Windows jobs currently processed have better network performance already. We'll provide another update as soon as this process is complete. Thanks for your patience.
- **monitoring** 2019-08-07 12:38 UTC: The NAT gateway changes have been fully reverted. Network performance and reliability in your builds should be back to normal. We’ll be monitoring for a short while before closing this incident.
- **resolved** 2019-08-07 14:40 UTC: This incident has been resolved.

## Rewindex changes for this incident

- 2019-08-06 17:55 UTC: [Major incident: Unreliable or intermittent network connectivity for Linux and Windows builds](https://rewindex.com/change/i9d86fec52b6f23.md)


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Canonical: https://rewindex.com/company/travis-ci/incidents/hl4vqb7hvv5n · Markdown: https://rewindex.com/company/travis-ci/incidents/hl4vqb7hvv5n.md · JSON: https://rewindex.com/api/v1/companies/travis-ci/incidents/hl4vqb7hvv5n · Generated 2026-10-18T10:41:17.851Z