Cornerstone incident

Service Disruption: US SL4 – Login & 404 Error Issues

Minor Ongoing View vendor source →

Cornerstone is currently experiencing a minor incident affecting Uptime and Response Time, which began 41 min ago. The vendor's full update timeline is below.

Started
May 21, 2026, 04:05 PM UTC
Resolved
Ongoing
Duration
● 41m
Detected by Pingoru
May 21, 2026, 04:05 PM UTC

Affected components

UptimeResponse Time

Update timeline

  1. investigating May 21, 2026, 04:05 PM UTC

    US SL4 is currently experiencing a service disruption. Some users are unable to log in or are encountering 404 errors when accessing the application. This issue is our highest priority, and our team is actively working to resolve it as quickly as possible. We will provide further updates as soon they become available. Please check back periodically for the latest information.

  2. identified May 21, 2026, 04:30 PM UTC

    The issue has been identified and a fix is being implemented.

  3. monitoring May 21, 2026, 04:42 PM UTC

    A fix has been implemented and we are monitoring the results.