Mainnet Flashblocks WebSocket Connection Instability

Incident Report for Base

Investigating

We are currently investigating degraded connection stability to the Base Mainnet WebSocket endpoint for Flashblocks `wss://mainnet.flashblocks.base.org/ws`. Applications and nodes may experience intermittent connection drops to that endpoint.
Posted Nov 04, 2025 - 15:32 UTC
This incident affects: Mainnet (Flashblocks).
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