# Okta: Issues with Custom Domains in Cell OK9

- Provider: [Okta](https://outages.live/okta.md)
- Type: Incident
- State: Resolved
- Worst impact: Partial outage
- Started: 2026-09-11 12:10 UTC
- Resolved: 2026-09-18 21:37 UTC (lasted 7 days)
- Components: Core Platform
- Official update: https://status.okta.com/#incident/a9CWR0000002IYk2AM

## Updates from Okta

### update, 2026-09-18 21:37 UTC

We sincerely apologize for any impact this incident has caused to you, your business, and your customers. At Okta, trust and transparency are our top priorities. Outlined below are the facts regarding this incident. We are committed to implementing improvements to the service to prevent future occurrences of this incident. Detection and Impact On September 11, 2026, at 5:09 AM PDT, Okta’s internal monitoring detected access issues for custom domains on Cell OK9. During this period, customers on OK9 using custom domains may have experienced intermittent connection timeouts, connection resets, and TLS handshake failures when attempting to access Okta. Standard Okta domains were not impacted. Root Cause Summary An automated, scheduled infrastructure update left the service running with reduced capacity, rendering it incapable of sustaining incoming connection volume. Because connection-based autoscaling was non-functional at the time, traffic surges could not trigger an automatic scale-ou

### update, 2026-09-11 13:10 UTC

Okta has remediated the OK9 connectivity issues. Connectivity errors persisted from 5:00 AM PDT to 5:36 AM PDT. We will continue to monitor and produce an RCA in 5 business days.

### update, 2026-09-11 12:50 UTC

Engineering has identified the issue and taken remediation steps to mitigate the issue. Connectivity to Custom Domains has been restored and the service has returned to normal. Okta will continue to monitor.