The disruption marks the second major incident since Starknet’s Grinta upgrade last year.
Starknet, an Ethereum Layer 2 (L2) network with $267 million in total value locked (TVL), has returned to normal operations after a network outage on Monday that slowed and halted activity for more than four hours.
According to Starknet’s status page, the incident began around 09:53 UTC, when the network started taking longer than expected to produce blocks. By 10:42 UTC, the team said it had identified inconsistencies in how transactions were being processed and verified and began investigating the issue.
At 13:23 UTC, Starknet released a software fix and rolled the network back to an earlier state to stabilize operations. The issue was marked as resolved at 14:02 UTC, when block production and transaction processing fully resumed.
The outage underscores how reliability issues on a major L2 can have wide-reaching effects. According to data from L2beat, Starknet is one of the most active L2s by daily throughput, with its total value secured (TVS) growing by 10% to over $797 million over the past week. Meanwhile, its daily user operations per second (UOPS) have increased by 24% over the same period.
Starknet confirmed Monday’s fix in a brief post on X, saying the network was “back online and fully operational.” The team noted that transactions submitted between 09:24 and 09:42 UTC may not have been processed correctly, and said a full review, including a detailed timeline, root cause analysis, and prevention measures, will be published later.
The incident follows a major outage in September, which occurred shortly after Starknet deployed its Grinta upgrade. That upgrade comprised a significant architectural change that introduced a decentralized sequencer, sub-second pre-confirmations, and a new fee market.
Starknet’s native token, STRK, showed little reaction to the outage and was trading around $0.089, down about 2% over the past 24 hours, according to CoinGecko data.
