Chainstack incident

Arbitrum Mainnet Degraded Performance

Minor

Resolved after 4 hours 51 minutes, affecting Arbitrum Global Nodes (Arbitrum One Mainnet) and Arbitrum Trader Nodes (Arbitrum One Mainnet Archive (Chainstack Cloud, Frankfurt)) and 1 more, on October 21, 2026.

investigating Oct 21, 2026, 09:04 PM UTC

We are currently investigating this incident.

Started
Oct 21, 2026, 09:04 PM UTC
Resolved
Oct 22, 2026, 01:55 AM UTC
Duration
4h 51m
Detected by Pingoru
Oct 21, 2026, 09:04 PM UTC

Affected components

Arbitrum Global Nodes (Arbitrum One Mainnet)Arbitrum Trader Nodes (Arbitrum One Mainnet Archive (Chainstack Cloud, Frankfurt))Arbitrum Trader Nodes (Arbitrum One Mainnet Full (Chainstack Cloud, Frankfurt))

Update timeline

  1. investigating Oct 21, 2026, 09:04 PM UTC

    We are currently investigating this incident.

  2. resolved Oct 22, 2026, 01:55 AM UTC

    This incident has been resolved.

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