The Sui blockchain network abruptly suspended transaction confirmations on Thursday following a sudden outage. According to statements from the development team at Mysten Labs, a congestion issue affected the mainnet, prompting the pause in activity. The team emphasized they are actively working to resolve the problem.
Details of the network halt
Sui’s official social media channels alerted users that the mainnet was experiencing congestion, warning that transactions might be put on hold during this time. The update called for user patience and promised to provide information as new developments unfold. The exact cause of the disruption had not been disclosed at the time of the incident.
Mysten Labs reported that mainnet congestion was ongoing and work continued to restore transaction flows, advising users to be prepared for delays until further updates are shared.
This is not Sui’s first technical issue. The platform, which launched its mainnet in 2023, has previously encountered sporadic periods of reduced performance and similar outages, making headlines on several occasions.
Sui network and SUI token price reaction
Positioning itself as a fast and cost-effective alternative to major blockchain networks like Ethereum and Solana, Sui aims to attract users with its transaction speed and low fees. Following the most recent outage, the network’s native token SUI experienced a sharp 8 percent drop in value within 24 hours. Meanwhile, market movements across the broader crypto sector remained mixed.
| Network | Launch Year | Last Outage | Native Token | 24h Change |
|---|---|---|---|---|
| Sui | 2023 | Thursday (latest) | SUI | -8% |
| Ethereum | 2015 | No major outage reported | ETH | Mixed |
| Solana | 2020 | Intermittently in recent history | SOL | Mixed |
Incidents like these continue to raise concerns, particularly among developers working on decentralized finance and blockchain-based applications. Although high-performance altcoin projects sometimes face technical setbacks, teams remain focused on upgrading their infrastructure to meet user expectations.
Glossary: A Layer 1 blockchain is the foundational public ledger within the crypto ecosystem. With its own protocol, it enables direct development of new tokens and applications—Bitcoin, Ethereum, Sui, and Solana are all examples.
About Mysten Labs and Sui
Developed by tech startup Mysten Labs, the Sui network aims to provide a fast and efficient backbone for decentralized applications. The company is especially focused on tackling the scalability and performance challenges commonly faced by high-throughput blockchains with innovative solutions.
Following the outage, the Sui team announced that their investigation is ongoing and pledged to keep the community regularly updated with any new developments.



