Sui Restores Service After Major 6-Hour Outage Shook Network

[Ben Graham]

Sui’s blockchain resumed normal activity after a network stall that halted transactions for roughly six hours on January 14, 2026. According to reports, validators identified the problem in the mid-afternoon and worked to roll out a fix that restored block creation and transaction processing later that evening.

Outage Timeline And Recovery

Based on reports, Sui’s team first flagged the issue at about 2:52 pm UTC when block production and checkpoint creation stopped. Validators applied changes and began bringing nodes back into sync.

Service was reported as restored at about 8:44 pm UTC, a span of roughly five hours and 52 minutes from detection to recovery. During that interval, no new blocks were finalized and user activity stopped across wallets and decentralized apps.

The Sui network is now back and fully operational. Transactions are flowing normally. If you are still seeing issues, please refresh your app or browser window. Thanks for your patience. We will share a full incident review in the coming days.

Please check…

— Sui (@SuiNetwork) January 14, 2026

Transactions Halted And Value Frozen

The halt left a large amount of on-chain value inactive while the network was stalled. Reports indicate more than $1 billion in value was effectively frozen during the outage, though there were no signs of funds being stolen or altered.

Users and apps that rely on the chain saw failed or queued transactions, and many dApps displayed errors until validators finished their updates.

Cause, Response And Market Reaction

Reports have disclosed that the problem was recorded as a consensus outage, meaning the mechanism used to agree on new blocks stopped finalizing. A full technical root-cause writeup has not yet been published.

The Sui Foundation said an incident report will appear later with more detail. The SUI token showed modest movement during the event, trading around $1.80–$1.85 in the hours after the network came back, with a brief spike recorded on some exchanges as the news circulated.

Past Interruptions And Context

Sui launched mainnet in May 2023, and this outage follows previous incidents that raised similar questions about validator coordination and uptime.

One earlier major disruption occurred in November 2024, which also involved issues around consensus and validator operation. Developers who build on Sui said many of their services experienced interrupted user flows while the chain was stalled.

Questions About Network Reliability

Some community members and outside observers have asked how often such consensus stalls can happen and what measures will reduce future occurrences.

Validators and the Sui team said they were focused on patching the immediate bug and improving monitoring so problems are detected faster. Based on reports, the foundation plans to share specific steps for validators and node operators in the upcoming post-mortem.

Sui’s team has said transactions are flowing again and advised users to refresh wallets or apps if they still see problems.

The network’s operators have promised more transparency with a formal incident report, which will be watched closely by developers, exchanges, and investors who depend on the chain’s steady operation.

Featured image from Unsplash, chart from TradingView