- Level
- confirmed
- Worst impact
- Partial outage
- Components
- US-West, US-West
- Regions
- us
- Down Index
- 31of 100
What to do
Check whether you use Sauce Labs US-West, US-West in us. Check your stack
Paste a package.json, lockfile, Terraform or a list of domains at down.guide/stack to see every provider you depend on.Confirm your retries, queues and scheduled jobs caught up after the 1h 2m it lasted.
Anything that failed between 2026-03-19 09:51 UTC and 2026-03-19 10:54 UTC may need a replay.Subscribe to Sauce Labs's feed to hear about the next one first. RSS feed
https://down.guide/feed?provider=saucelabs works in Slack (/feed subscribe), Discord feed bots and any RSS reader.
Root cause
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.
Category: Data center or power
Read the postmortemUpdates from Sauce Labs 3
- 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.
provider
- resolved
This incident has been resolved and our services are fully operational.
provider
- 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.
provider
Reports count in aggregate; nothing about you is shown.
Corrections
None so far.
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Questions about DWN-41196e4b21
Is Sauce Labs still down?
No, this incident was resolved 2026-03-19 10:54 UTC. For Sauce Labs's live state, see https://down.guide/providers/saucelabs.
How long did it last?
1h 2m, from 2026-03-19 09:51 UTC to 2026-03-19 10:54 UTC, by the times Sauce Labs posted.
What was affected?
Sauce Labs named US-West, US-West in us.
What caused it?
Data center or power. Sauce Labs wrote: "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." The postmortem: https://stspg.io/qsrmlzlqy09n
Where does this come from?
Sauce Labs's official status page, https://status.saucelabs.com, quoted verbatim. down.guide's own probes, reports and social counts are labeled as ours.