CoreWeave incident
Network connectivity issue affecting a subset of nodes in US-EAST-04A
Resolved after 1 hour 40 minutes, affecting CoreWeave Infrastructure and CoreWeave Networking and 1 more, on August 4, 2026.
The issue has been resolved and affected nodes have returned to service. We will continue to monitor.
Affected components
Update timeline
- investigating Aug 04, 2026, 10:56 PM UTC
We are investigating a networking hardware issue in US-EAST-04A affecting connectivity for a subset of nodes. Out of an abundance of caution, impacted nodes have been temporarily removed from service while our engineers work to restore connectivity. Customers may see a small number of nodes become unavailable or unschedulable during this time.
- identified Aug 04, 2026, 11:53 PM UTC
Our engineers have identified the issue and remediation is underway. We will provide another update within the next hour or sooner.
- monitoring Aug 05, 2026, 12:25 AM UTC
The issue has been resolved and affected nodes have returned to service. We will continue to monitor.
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