- The Sui Blockchain is currently down, with transactions paused for nearly three hours as of this report.
- This marks the network’s third outage in the past 18 months, following two previous major disruptions in 2024 and 2025.
- Developers from Mysten Labs are working on an emergency fix, though the root cause has not been publicly disclosed.
The Sui Network blockchain has halted transactions, experiencing a network stall that began at 13:48 UTC, marking its third significant outage in just 18 months. According to its official social media, the core team is actively working on a solution while the network’s status page shows an ongoing “mainnet settlement” incident.
However, the precise technical cause for this outage remains undisclosed by the development team. Meanwhile, activity on Mysten Labs’ GitHub repository indicates developers are deploying an emergency fix.
Consequently, transaction processing is stalled, as confirmed by block explorer Suiscan. This latest failure follows a two-hour outage in 2024 and a six-hour disruption in January 2025, which the network previously detailed in a blog post.
The network, which bills itself as “high-performance,” is often compared to Solana as a fast alternative to Ethereum. This incident mirrors a history of similar outages for so-called “Solana killer” networks that aim for maximum speed and throughput.
Other scaling-focused blockchains, including popular Ethereum layer-2s, have recently faced similar stutters. For instance, Coinbase’s Base network went offline for 44 minutes last year, and Starknet experienced two restarts in a single day.
The Sui Network was launched in 2023 as the spiritual successor to Meta’s abandoned Diem project. The network has also faced significant security challenges, including a hack of its main decentralized exchange, Cetus, which resulted in over $200 million in losses last year.
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