# 2026-January-29 Resolved Service Incident

- Provider: [Sauce Labs](https://down.guide/saucelabs)
- Level: confirmed
- Impact: Operational
- lasted 0m
- started 2026-01-29 11:11 UTC
- us, us-west-1
- id: DWN-a8c7a486a4
- Official page: https://stspg.io/2mb9wb4g2d9d

## Updates from Sauce Labs
### 2026-01-29 11:11 UTC: resolved
Between 8:00 CET - 9:45 CET, We were seeing elevated error rates and intermittent issues with test assets not being retained for tests on iOS and Mac virtual devices in our US-West-1 data center. The issue has now been resolved but some customers might see missing test assets.

### 2026-02-03 14:01 UTC: postmortem
Dates:
Thursday, January 29th 2026, 07:04 - 08:46 UTC.
What happened:
Between 07:04 UTC and 08:46 UTC on January 29, 2026, customers using our US-West-1 region experienced instability with Mac resources. Specifically:
\* Approximately 20% of iOS simulator jobs failed to start due to infrastructure errors.
\* 10% of Virtual MacOS/iOS jobs failed to upload assets to S3. As a result, logs, videos, and screenshots for these specific jobs were lost and remain unavailable for download.
Why it happened:
Scheduled maintenance on a primary network circuit coincided with high traffic volume, which led to congestion on the backup circuit.
How we fixed it:
Full connectivity was restored when traffic was routed back to the primary circuit following the completion of maintenance.
What we are doing to prevent it from happening again:
Review network redundancy strategies and consider upgrading backup circuit capacity to ensure it can support peak traffic loads.

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