The SUI mainnet experienced another network outage on Friday, temporarily halting on-chain activity. This marks the second consecutive day of network disruptions, reigniting market concerns about its stability. As a result, SUI fell approximately 2% in the past 24 hours, bringing its weekly decline to 20%.
Currently, SUI is trading at $0.89, a drop of over 83% from its all-time high of $5.35 reached in January 2025. According to CoinGecko data, SUI's performance over the past week has placed it among the worst-performing assets in the top 100 tokens by market capitalization.
Officials stated that the mainnet was temporarily suspended.
Sui's team stated on the X platform that the mainnet was experiencing a "network outage" at the time, and on-chain activity might be suspended. Subsequently, the team stated that the mainnet had resumed operation due to a vulnerability in the gas billing logic introduced in version 1.72, and indicated that a full incident recap would be released in the coming days.
The system has experienced multiple malfunctions this year.
This outage occurred not long after the last major failure. Sui disclosed in January that a similar network outage had occurred on the mainnet, lasting approximately six hours. According to reports, including this incident, Sui has experienced three significant outages this year.
Stability issues are once again a concern.
Sui was launched by Mysten Labs in 2023. The company completed a $300 million Series B funding round in 2022, at which time it was valued at approximately $2 billion. Despite a recent significant price decline, SUI's current market capitalization remains at approximately $3.6 billion.
Sui has often been compared to Solana, but its recurring failures have once again focused attention on the stability of high-performance public blockchains. For developers and users, the continued stability of the mainnet remains a crucial factor affecting ecosystem activity.












