Resolved after 1 hour 37 minutes, affecting CoreWeave Cloud and CoreWeave Services and 1 more, on August 13, 2026.
Beginning at 22:51 UTC on 13 August 2026, we identified a network connectivity issue affecting internal service communication within the EU-SOUTH-03B availability zone. Customers in this availability zone may experience intermittent errors or delays when performing cluster control-plane operations, such as Kubernetes API requests. Running workloads and compute nodes are not currently showing impact. Our networking teams are actively engaged and investigating. Other availability zones and regions are unaffected.
Affected components
Update timeline
- investigating Aug 13, 2026, 11:21 PM UTC
Beginning at 22:51 UTC on 13 August 2026, we identified a network connectivity issue affecting internal service communication within the EU-SOUTH-03B availability zone. Customers in this availability zone may experience intermittent errors or delays when performing cluster control-plane operations, such as Kubernetes API requests. Running workloads and compute nodes are not currently showing impact. Our networking teams are actively engaged and investigating. Other availability zones and regions are unaffected.
Your product runs on more than CoreWeave
Add the vendors you depend on and get one message when any of them reports trouble. Free for 3 vendors, no card.
Amazon Web Services