Sui Network Mainnet Freezes: Major Outage Disrupts Transactions

Sui Network’s mainnet halted block production on January 14, 2026, freezing transactions and disrupting dApps for over three hours. Developers are investigating and working on a fix, with no recovery timeline yet announced.

On January 14, 2026, the Sui Network mainnet suffered a significant outage, halting block production and freezing all on-chain transactions for over three hours. The disruption began in the afternoon UTC, with the last validated checkpoint recorded at 2:22 p.m. and no new transactions processed since then. Core developers acknowledged the network stall and announced they were actively working on a solution, though no specific timeline for recovery was provided. The outage affected decentralized applications such as SuiScan and Slush, rendering them inaccessible or unreliable. Users experienced failed requests and unresponsive interfaces across the ecosystem. This marks the second major outage and third significant performance degradation in Sui’s history, following incidents in November 2024 and December 2025. The root cause of the disruption remains under investigation, and the network’s consensus and block finalization processes were fully stalled as of the latest updates. The Sui core team continues to monitor the situation and has promised further updates as they work to restore normal operations.