Sui Outage History

Sui is up right now

Sui had 7 outages in the last 2 years totaling 48h 17m of downtime — averaging 0.3 incidents per month.

There were 7 Sui outages since June 3, 2024 totaling 48h 17m of downtime. Each is summarised below — incident details, duration, and resolution information.

Source: https://status.sui.io

Critical January 14, 2026

Consensus outage

Detected by Pingoru
Jan 14, 2026, 02:52 PM UTC
Resolved
Jan 14, 2026, 09:22 PM UTC
Duration
6h 30m
Affected: Sui Mainnet - ValidatorsSui Mainnet - Public RPC Nodes
Timeline · 6 updates
  1. investigating Jan 14, 2026, 02:52 PM UTC

    investigating consensus issues across all validators

  2. investigating Jan 14, 2026, 02:52 PM UTC

    We are continuing to investigate this issue.

  3. identified Jan 14, 2026, 03:18 PM UTC

    The issue has been identified and a fix is being implemented.

  4. identified Jan 14, 2026, 07:37 PM UTC

    Fix is ready and will be rolled out soon

  5. monitoring Jan 14, 2026, 08:44 PM UTC

    A fix has been implemented and we are monitoring the results.

  6. resolved Jan 14, 2026, 09:22 PM UTC

    The validators have rolled out the fix and the system is fully functional.

Read the full incident report →

Minor December 14, 2025

Sui Mainnet Network

Detected by Pingoru
Dec 14, 2025, 07:52 PM UTC
Resolved
Dec 14, 2025, 11:03 PM UTC
Duration
3h 11m
Affected: Sui Mainnet - ValidatorsSui Mainnet - Public RPC Nodes
Timeline · 2 updates
  1. investigating Dec 14, 2025, 07:52 PM UTC

    We are currently investigating degraded consensus, much higher latencies.

  2. resolved Dec 14, 2025, 11:03 PM UTC

    This incident has been resolved.

Read the full incident report →

Notice June 28, 2025

Testnet validators lost quorum for checkpoint generation

Detected by Pingoru
Jun 28, 2025, 11:12 PM UTC
Resolved
Jun 29, 2025, 11:20 PM UTC
Duration
1d
Affected: Sui Testnet - Validators
Timeline · 2 updates
  1. investigating Jun 28, 2025, 11:12 PM UTC

    We understand the root cause and the team is figuring out options for troubleshooting.

  2. resolved Jun 29, 2025, 11:20 PM UTC

    This incident has been resolved.

Read the full incident report →

Major November 21, 2024

Validators are down

Detected by Pingoru
Nov 21, 2024, 10:39 AM UTC
Resolved
Nov 21, 2024, 11:47 AM UTC
Duration
1h 7m
Affected: Sui Mainnet - Validators
Timeline · 4 updates
  1. investigating Nov 21, 2024, 10:39 AM UTC

    We are currently investigating this issue.

  2. investigating Nov 21, 2024, 10:40 AM UTC

    We are continuing to investigate this issue.

  3. resolved Nov 21, 2024, 11:47 AM UTC

    v1.37.4 patch has been rolled out on Mysten Validators and announced publicly for immediate rollout.

  4. postmortem Nov 21, 2024, 08:58 PM UTC

    Please see [https://blog.sui.io/sui-mainnet-outage-resolution/](https://blog.sui.io/sui-mainnet-outage-resolution/) for detailed explanation of what happened.

Read the full incident report →

Notice November 12, 2024

Sui testnet validators don't accept new user transactions

Detected by Pingoru
Nov 12, 2024, 08:00 PM UTC
Resolved
Nov 12, 2024, 10:15 PM UTC
Duration
2h 14m
Affected: Sui Testnet - Validators
Timeline · 2 updates
  1. identified Nov 12, 2024, 09:17 PM UTC

    There is an issue with the change in the cert processing on Sui testnet, enough validators aren't able to accept certs and as such it's impossible to submit user transactions on testnet. Walrus testnet writes are affected as a result of that as well.

  2. resolved Nov 12, 2024, 10:52 PM UTC

    This incident has been resolved.

Read the full incident report →

Major July 5, 2024

Public RPC nodes crashing when trying to submit a transaction

Detected by Pingoru
Jul 05, 2024, 06:18 PM UTC
Resolved
Jul 05, 2024, 08:00 PM UTC
Duration
1h 41m
Affected: Sui Mainnet - Public RPC Nodes
Timeline · 3 updates
  1. identified Jul 05, 2024, 06:18 PM UTC

    The team has identified the issue and is building a fix right now.

  2. identified Jul 05, 2024, 07:46 PM UTC

    The fix is out on https://github.com/MystenLabs/sui/releases/tag/mainnet-v1.27.4, the team is building the new images

  3. resolved Jul 05, 2024, 08:00 PM UTC

    The nodes are recovering after deploying 1.27.4

Read the full incident report →

Critical June 3, 2024

Testnet Outage

Detected by Pingoru
Jun 03, 2024, 12:20 PM UTC
Resolved
Jun 03, 2024, 09:45 PM UTC
Duration
9h 24m
Affected: Sui Testnet - Validators
Timeline · 2 updates
  1. identified Jun 03, 2024, 12:20 PM UTC

    The issue has been identified and a fix is being implemented.

  2. resolved Jun 04, 2024, 12:30 AM UTC

    Patch rolled out to Validators. This incident has been resolved.

Read the full incident report →