# 2026-June-1 Service Incident

- Provider: [Sauce Labs](https://down.guide/providers/saucelabs)
- Confidence: Confirmed
- Impact: Major outage
- lasted 4h 22m
- started 2026-06-01 14:02 UTC
- US-East, US-East, US-East +4
- us, us-east-4
- id: DWN-867e64a47e
- Official page: https://stspg.io/7l70v858zpwm

## Updates from Sauce Labs
### 2026-06-01 14:02 UTC: investigating
We are experiencing an issue where the US-EAST data center is currently unavailable. We are investigating.

### 2026-06-01 14:55 UTC: investigating
We are continuing to investigate this issue.

### 2026-06-01 15:30 UTC: investigating
We have identified the root cause and are working on implementing a fix.

### 2026-06-01 16:02 UTC: monitoring
Access has been restored to the US-EAST data center. We are monitoring.

### 2026-06-01 18:24 UTC: resolved
After taking remedial action, access to the US-EAST data center is fully restored. This incident is resolved.

### 2026-06-15 23:32 UTC: postmortem
Dates:
Monday, June 1st 2026, 13:06 UTC - 15:42 UTC.
What happened:
Customers served by the US-EAST-4 region were unable to authenticate or start new test sessions because an incomplete TLS certificate chain was deployed to the core directory services. 
Why it happened:
A certificate extraction script defect silently truncated the certificate chain after the certificate authority transitioned to a longer hierarchy. 
How we fixed it:
Reverted the certificate rotation and re-applied the previous known ,good certificate to restore authentication services.
What we are doing to prevent it from happening again:
Implementing pre-deployment certificate chain validation, adding active monitoring, and fixing the script's chain-length limitations.

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