CoreWeave incident

Network connectivity issue affecting a subset of nodes in US-EAST-04A

Minor Resolved View vendor source →

CoreWeave experienced a minor incident on August 4, 2026 affecting CoreWeave Infrastructure and CoreWeave Networking and 1 more component, lasting 1h 40m. The incident has been resolved; the full update timeline is below.

Started
Aug 04, 2026, 10:56 PM UTC
Resolved
Aug 05, 2026, 12:36 AM UTC
Duration
1h 40m
Detected by Pingoru
Aug 04, 2026, 10:56 PM UTC

Affected components

CoreWeave InfrastructureCoreWeave NetworkingCoreWeave Networking (US-EAST-04)

Update timeline

  1. 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.

  2. 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.

  3. 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.