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Base Blockchain Resumes After Two-Hour Outage on Ethereum Layer-2 Network

The Coinbase-backed network is still investigating the cause, and a sequencer handoff previously led to a similar disruption.

By Luc Vesters
• 2 min read
Base Blockchain Resumes After Two-Hour Outage on Ethereum Layer-2 Network

Key Takeaways

  • Base resumed block production after an outage of about two hours on the Ethereum layer-2 network.
  • The outage started around 16:03 UTC; by 16:52 UTC, Base said the issue had been identified and recovery steps were underway.
  • The exact cause is still unknown; Base is investigating the incident and is advising node operators to restart their nodes.

Base, the Coinbase-backed Ethereum layer-2 network, has resumed block production after an outage of about two hours that temporarily brought the network to a halt. The disruption started around 16:03 UTC when Base said block production on mainnet was "unhealthy." Shortly after, at 16:52 UTC, the team said the issue had been identified and several recovery steps were being taken.

Cause and Previous Incidents

While Base has not yet revealed exactly what caused the invalid block that triggered the outage, the team is still looking into the situation. It is still unclear whether the problem came from a software bug or another consensus-related issue. This is not the first time Base has run into problems like this. In August 2025, there was also a network outage, which was blamed on a sequencer handoff failure. At the time, the active sequencer fell behind because of congestion, and the backup sequencer was not fully operational, which led to a temporary stop in block production.

Network Stability and Technical Challenges

Base uses a centralized sequencer for block production, which is a critical part of its infrastructure. This setup creates a single point of failure, which can lead to outages like this one. After the August 2025 outage, Base engineers announced upgrades to make sure all sequencers can handle block-building tasks. That should improve the network's resilience and help limit future disruptions. The Base team is also now advising ecosystem node operators to restart their Base nodes to restore synchronization. Monitoring of network stability will continue, and more updates are expected as the investigation moves forward.

Why This Matters for European Crypto Users

For European users and other international participants in the crypto market, this incident highlights the importance of solid infrastructure in layer-2 solutions. Outages on networks like this can directly affect transaction processing and the user experience. So developments around Base may matter for anyone relying on scalable and reliable Ethereum solutions, especially as adoption of layer-2 networks keeps growing. Institutional players are also increasingly looking at tokenized products on Ethereum, which makes the network's reliability and infrastructure even more important.

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