Critical incident

UCSB: 504 Gateway Time-Out message on SSO Sites

Affected: SSO

Current status of UCSB: Partial outage — live UCSB status

Timeline

1. Oct 29, 2026, 14:12 UTC
   investigating
   Applications requiring SSO authentication are getting a 504 Gateway Time-Out. Engineering units are addressing the problem, and we will provide updates as they become available. Thank you for your patience and support during this incident.
2. Oct 29, 2026, 15:23 UTC
   investigating
   The identity engineering team continues to work on restoring services. A campus-wide message has been sent advising on the SSO outage. Updates to be provided as they become available. Thank you for your support and patience during this incident.
3. Oct 29, 2026, 15:40 UTC
   monitoring
   Logins are succeeding across critical services (including ServiceNow, Kronos, and UCPath). If you are still experiencing SSO issues, please follow one of these recommendations: clear the cache (this could be targeted to a 1-hour or 1-day cache clear), use a Private or Incognito window, or close the browser, wait a few minutes, and try again. If you are still experiencing SSO problems, please contact your local IT team.

Updates as published by UCSB (original).