Key Facts

• Coinbase-backed Ethereum layer-2 network Base resumed block production and transaction processing after a roughly two-hour outage that halted network operations.
• The incident was triggered by an invalid block, which caused the issue, and the team continues to investigate the root cause of the problem.
• The Base team advised ecosystem node operators to restart their Base nodes to restore synchronization, and internal nodes were syncing correctly after the incident.
• The outage temporarily halted transaction processing on one of Ethereum's largest layer-2 networks, causing significant disruption to users and applications relying on the network.
• This incident marks the second outage for Base, following a previous disruption in August 2025, raising concerns about the network's stability and reliability.