Chainstack incident

Degraded performance on Ethereum Sepolia

Minor Resolved

Chainstack experienced a minor incident on May 27, 2026 affecting Ethereum Global Nodes (Ethereum Sepolia Testnet) and Ethereum Trader Nodes (Ethereum Sepolia Testnet Full (Virtuozzo, Frankfurt)) and 1 more component, lasting 3h 32m. The incident has been resolved; the full update timeline is below.

Started
May 27, 2026, 01:30 PM UTC
Resolved
May 27, 2026, 05:02 PM UTC
Duration
3h 32m
Detected by Pingoru
May 27, 2026, 01:30 PM UTC

Affected components

Ethereum Global Nodes (Ethereum Sepolia Testnet)Ethereum Trader Nodes (Ethereum Sepolia Testnet Full (Virtuozzo, Frankfurt))Ethereum Beacon (Ethereum Sepolia Testnet Beacon)Ethereum Beacon (Ethereum Sepolia Testnet Beacon (Virtuozzo, Frankfurt))

Update timeline

  1. identified May 27, 2026, 01:30 PM UTC

    We are continuing to work on a fix for this incident.

  2. resolved May 27, 2026, 05:02 PM UTC

    This incident has been resolved.