Major incident

Cornerstone: FTP inaccessible across UK Production

Affected: Uptime, Uptime, Uptime, Edge Import / Edge Loads (Stuck/Erroring), Edge Import / Edge Loads (Stuck/Erroring), Edge Import / Edge Loads (Stuck/Erroring)

Current status of Cornerstone: Operational — live Cornerstone status

Timeline

1. Oct 20, 2026, 21:13 UTC
   investigating
   Our Engineering teams are performing an Emergency Change and as a result FTP across UK Production environment is currently inaccessible. We are working to restore access and will update here as soon as complete.
2. Oct 20, 2026, 22:58 UTC
   investigating
   Engineering is continuing to work on the Emergency Control Change As part of this work we have needed to pause Data Feeds and they will resume once this work is completed. We will continue to keep this page updated at least every 2 hours or as we get new information. We apologize for any inconvenience.
3. Oct 21, 2026, 01:00 UTC
   investigating
   Our Engineering teams are continuing to work on restoring FTP access across the UK Production environment. The issue remains under investigation, and we will provide a further update as soon as more information becomes available.
4. Oct 21, 2026, 03:04 UTC
   resolved
   Our Engineering team has confirmed that FTP access across the UK Production environment has been restored. We have also performed checks on our side, and no further issues have been observed so far.

Updates as published by Cornerstone (original).