# 2026-March-10 Service Incident

- Provider: [Sauce Labs](https://down.guide/providers/saucelabs)
- Confidence: Confirmed
- Impact: Partial outage
- lasted 4h 49m
- started 2026-03-10 18:46 UTC
- US-West, US-West, EU-Central +3
- eu, us
- Sauce Labs states the impact was 2026-03-10 17:52 to 23:34 UTC (5h 42m)
- id: DWN-b73bb6b78c
- Official page: https://stspg.io/2629b66924m5

## Root cause
> We are experiencing device unavailability in the US West 1, EU Central 1, and US East 4 data centers and have found that the issue is caused by a 3rd party service disruption.

Category: Data center or power. [Postmortem](https://stspg.io/2629b66924m5)

## Updates from Sauce Labs
### 2026-03-10 18:46 UTC: investigating
We are experiencing device unavailability in the US West 1, EU Central 1, and US East 4 data centers and have found that the issue is caused by a 3rd party service disruption. We are investigating.

### 2026-03-10 23:34 UTC: resolved
This incident has been resolved.

### 2026-04-09 21:07 UTC: postmortem
Dates:
Tuesday March 10th 2026, 17:52 - 23:34 UTC
What happened:
The majority of iOS devices across all regions became unavailable.
Why it happened:
Apple's ppq.apple.com (http://ppq.apple.com) app verification endpoint was down, causing internal device monitoring checks to fail, bringing devices offline.
How we fixed it:
We temporarily disabled these device monitoring checks.
What we are doing to prevent it from happening again:
Improved external monitoring to catch outages of apple’s ppq.apple.com (http://ppq.apple.com) endpoint, loosened device monitoring to not take down live iOS devices if ppq.apple.com (http://ppq.apple.com) is down.

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