Summary
- The Sui layer-1 blockchain is experiencing another significant outage.
- Engineers have pinpointed the problem and are implementing a solution.
- In January, the network also faced a "network stall" lasting nearly six hours.
The Sui blockchain, designed to rival other fast layer-1 solutions, has encountered issues reminiscent of those faced by competitor Solana, specifically regarding downtime.
The most recent “network stall,” which was first reported on Thursday morning, has resulted in over five hours of significant network outage while the Sui team works on a resolution.
At approximately 10:30 a.m. ET, the blockchain communicated on X, stating, “Sui Mainnet is currently experiencing a network stall. Please note that transactions may be paused at this time. Updates will be provided as they become available.”
Later, at 3:40 p.m. ET, an update on the Sui network status page indicated that a "fix is rolling out to validators."
did you guys try this?
this always works, btw. pic.twitter.com/3876dctFEh
— Observe (@obsrvgmi) May 28, 2026
This outage follows a similar incident from five months ago, when the layer-1’s mainnet was down for over six hours in January. Prior to that, the network faced a major validator problem in 2024 that impeded transaction processing.
Although the engineers recognized the issue quickly, as of the latest update, a fix has yet to be fully implemented, per the blockchain’s status page.
During this downtime, the SUI token, the native cryptocurrency of the network, has seen a decline of 5.4% over the past 24 hours, now trading at $0.92, which is a sharper drop compared to Bitcoin, Ethereum, and other leading cryptocurrencies.
This year, the initial SUI ETFs entered the market, with offerings from both Canary and Grayscale providing traditional investors access to the SUI token and staking rewards through equities markets.
Launched in 2023, Sui was developed by Mysten Labs, an offshoot of Meta’s Diem project, and previously raised $300 million in a Series B funding round that valued the company at $2 billion in 2022.