Network performance issues in Ashburn, US (IAD)

Final update

This incident has been resolved.

1. Resolved · Oct 13, 14:56 UTC
   This incident has been resolved.
2. Monitoring · Oct 13, 10:42 UTC
   Vendor has updated to say that their maintenance window will be extended till 13:00 UTC. Customers should continue to expect normal network behaviour and performance through the maintenance window.
3. Monitoring · Oct 13, 06:57 UTC
   Impact observed 06:33 - 06:41 UTC when we observe the vendor restoring the impacted capacity. We believe they temporarily affected all remaining capacity during the restoration and are following up with them. At this point all capacity has been restored and we are monitoring
4. Monitoring · Oct 13, 05:09 UTC
   We have identified the issue to be related to third-party circuit maintenance, have mitigated the impact that affected traffic, and customers should expect normal network behaviour and performance through the maintenance window. We will update when the maintenance is complete, expected at 10:00 GMT today (2026-10-13).
5. Monitoring · Oct 13, 05:00 UTC
   We have taken measures to address any impact and are closely monitoring the situation.
6. Identified · Oct 13, 04:52 UTC
   We are continuing to work on a fix for the issue.
7. Identified · Oct 13, 04:52 UTC
   The issue has been identified and a fix is being implemented.
8. Investigating · Oct 13, 04:00 UTC
   Cloudflare is investigating issues with network performance in Ashburn, US (IAD). We are working to analyse and mitigate this problem. More updates to follow shortly.