# 2026-March-19 Service Incident

- Provider: [Sauce Labs](https://down.guide/saucelabs)
- Level: confirmed
- Impact: Partial outage
- lasted 1h 2m
- started 2026-03-19 09:51 UTC
- US-West, US-West
- us
- id: DWN-41196e4b21
- Official page: https://stspg.io/qsrmlzlqy09n

## Updates from Sauce Labs
### 2026-03-19 09:51 UTC: investigating
Around 4:45 AM UTC we started experiencing lower iOS device availability in the US-West data center. Our team is actively investigating the root cause and working toward a resolution.

### 2026-03-19 10:54 UTC: resolved
This incident has been resolved and our services are fully operational.

### 2026-04-10 22:59 UTC: postmortem
### \*\*Dates:\*\*
Wednesday, March 19 2026, 04:45 UTC - 10:47 UTC.
### \*\*What happened:\*\*
Approximately 15% of iOS devices in our US-West data center were temporarily unavailable for customer test sessions due to failed internet connectivity checks.
### \*\*Why it happened:\*\*
An automated wireless network optimization feature adjusted transmit power levels on access points serving the affected devices, degrading wireless connectivity and causing devices to fail their availability checks.
### \*\*How we fixed it:\*\*
The affected access points were identified and restarted, restoring normal wireless connectivity.
### \*\*What we are doing to prevent it from happening again:\*\*
Evaluation of the automated optimization tools and a monitoring improvement.

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