Chainstack Outage History

Chainstack major outage · 2 active incidents View live status →

Chainstack had 151 outages in the last 2 years totaling 300h 33m of downtime — averaging 6.2 incidents per month.

There were 151 Chainstack outages since December 10, 2025 totaling 300h 33m of downtime. Each is summarised below — incident details, duration, and resolution information.

Source: https://status.chainstack.com

Minor July 31, 2026

Polygon Mainnet lagging in Ashburn

Detected by Pingoru
Jul 31, 2026, 04:56 AM UTC
Resolved
Jul 31, 2026, 05:31 AM UTC
Duration
34m
Affected: Polygon Global Nodes (Polygon Mainnet)Polygon Trader Nodes (Polygon Mainnet Full (Chainstack Cloud, Ashburn))
Timeline · 2 updates
  1. investigating Jul 31, 2026, 04:56 AM UTC

    Upstreams are lagging in the Ashburn cluster. We are currently investigating this incident.

  2. resolved Jul 31, 2026, 05:31 AM UTC

    This incident has been resolved.

Read the full incident report →

Minor July 31, 2026

Arbitrum Nitro Sepolia degraded performance in LAX region

Detected by Pingoru
Jul 31, 2026, 03:17 AM UTC
Resolved
Jul 31, 2026, 03:43 AM UTC
Duration
26m
Affected: Arbitrum Global Nodes (Arbitrum Sepolia)
Timeline · 3 updates
  1. investigating Jul 31, 2026, 03:17 AM UTC

    The nodes may return 503 errors. We are currently investigating this incident.

  2. monitoring Jul 31, 2026, 03:23 AM UTC

    We implemented a fix and are currently monitoring the result.

  3. resolved Jul 31, 2026, 03:43 AM UTC

    This incident has been resolved.

Read the full incident report →

Major July 31, 2026

Several Testnets Outage due to network maintenance

Detected by Pingoru
Jul 31, 2026, 03:03 AM UTC
Resolved
Jul 31, 2026, 08:08 AM UTC
Duration
5h 4m
Affected: Avalanche Trader Nodes (Avalanche Fuji Testnet (Virtuozzo, Frankfurt))Bitcoin Trader Nodes (Bitcoin Testnet Full (Virtuozzo, Frankfurt))Ethereum Trader Nodes (Ethereum Sepolia Testnet Full (Virtuozzo, Frankfurt))Harmony Trader Nodes (Harmony Mainnet Full (Virtuozzo, Frankfurt))Ethereum Beacon (Ethereum Sepolia Testnet Beacon (Virtuozzo, Frankfurt))Gnosis Trader Nodes (Gnosis Chiado Testnet Full (Virtuozzo, Frankfurt))
Timeline · 6 updates
  1. investigating Jul 31, 2026, 03:03 AM UTC

    Due to network maintenance, some chains may be temporarily inaccessible for a short period. Our team is working on the same. We apologize for any inconvenience caused.

  2. monitoring Jul 31, 2026, 03:38 AM UTC

    We implemented a fix and are currently monitoring the result.

  3. identified Jul 31, 2026, 04:42 AM UTC

    We are continuing to work on a fix for this incident.

  4. resolved Jul 31, 2026, 06:26 AM UTC

    This incident has been resolved.

  5. identified Jul 31, 2026, 06:51 AM UTC

    Nodes are unstable again. We are continuing to work on a fix for this incident.

  6. resolved Jul 31, 2026, 08:08 AM UTC

    This incident has been resolved.

Read the full incident report →

Minor July 29, 2026

Degraded Performance for Solana Mainnet in the LAX Region

Detected by Pingoru
Jul 29, 2026, 02:44 PM UTC
Resolved
Jul 30, 2026, 09:19 AM UTC
Duration
18h 34m
Affected: Solana Global Nodes (Solana Mainnet)
Timeline · 3 updates
  1. investigating Jul 29, 2026, 02:44 PM UTC

    We are currently investigating this incident.

  2. monitoring Jul 29, 2026, 03:26 PM UTC

    We implemented a fix and are currently monitoring the result.

  3. resolved Jul 30, 2026, 09:19 AM UTC

    This incident has been resolved.

Read the full incident report →

Minor July 27, 2026

Degraded Performance on Avalanche Fuji Testnet

Detected by Pingoru
Jul 27, 2026, 02:59 PM UTC
Resolved
Jul 27, 2026, 03:37 PM UTC
Duration
38m
Affected: Avalanche Global Nodes (Avalanche Fuji Testnet)
Timeline · 3 updates
  1. investigating Jul 27, 2026, 02:59 PM UTC

    We are currently investigating this incident.

  2. monitoring Jul 27, 2026, 03:08 PM UTC

    The issue has auto-resolved, and the affected services have recovered. We are continuing to monitor while the team investigates the root cause

  3. resolved Jul 27, 2026, 03:37 PM UTC

    The issue has been resolved, and all services are operating normally. We’ll continue monitoring to ensure stability

Read the full incident report →

Minor July 24, 2026

Degraded Performance in the LAX Region

Detected by Pingoru
Jul 24, 2026, 07:10 PM UTC
Resolved
Jul 24, 2026, 09:00 PM UTC
Duration
1h 49m
Affected: Avalanche Global Nodes (Avalanche Mainnet)Arbitrum Trader Nodes (Arbitrum One Mainnet Archive (Chainstack Cloud, Los Angeles))Base Global Nodes (Base Mainnet)Arbitrum Trader Nodes (Arbitrum One Mainnet Full (Chainstack Cloud, Los Angeles))Avalanche Trader Nodes (Avalanche Mainnet Full (Chainstack Cloud, Los Angeles))Base Trader Nodes (Base Mainnet Full (Chainstack Cloud, Los Angeles))Base Global Nodes (Base Sepolia Testnet)Base Trader Nodes (Base Mainnet Archive (Chainstack Cloud, Los Angeles))Bitcoin Global Nodes (Bitcoin Mainnet)Bitcoin Global Nodes (Bitcoin Testnet)Celo Global Nodes (Celo Mainnet)Bitcoin Global Nodes (Bitcoin Signet Testnet GEN Masternode Instatus)Bitcoin Trader Nodes (Bitcoin Mainnet Full (Chainstack Cloud, Los Angeles))Ethereum Global Nodes (Ethereum Mainnet)Fantom Global Nodes (Fantom Mainnet)Ethereum Global Nodes (Ethereum Sepolia Testnet)Ethereum Global Nodes (Ethereum Hoodi Testnet)Gnosis Global Nodes (Gnosis Chain Mainnet)Ethereum Beacon (Ethereum Mainnet Beacon)Gnosis Global Nodes (Gnosis Chain Chiado Testnet)Ethereum Beacon (Ethereum Sepolia Testnet Beacon)Hyperliquid Global Nodes (Hyperliquid Mainnet)Optimism Global Nodes (Optimism Mainnet)Optimism Global Nodes (Optimism Sepolia Testnet)Optimism Trader Nodes (Optimism Mainnet Archive (Chainstack Cloud, Los Angeles))Optimism Trader Nodes (Optimism Mainnet Full (Chainstack Cloud, Los Angeles))TON Global Nodes (TON Mainnet API v2)TON Global Nodes (TON Mainnet API v3)TON Global Nodes (TON Testnet API v2)TON Global Nodes (TON Testnet API v3)ZKsync Era Global Nodes (ZKsync Era Mainnet)ZKsync Era Global Nodes (ZKsync Era Sepolia Testnet)
Timeline · 2 updates
  1. investigating Jul 24, 2026, 07:10 PM UTC

    We are currently investigating this incident.

  2. resolved Jul 24, 2026, 09:00 PM UTC

    The intermittent connectivity issue affecting part of our LAX infrastructure has been resolved. Services are operating normally again.

Read the full incident report →

Minor July 24, 2026

Degraded performance on Solana Mainnet in Singapore & Frankfurt

Detected by Pingoru
Jul 24, 2026, 06:18 AM UTC
Resolved
Jul 30, 2026, 08:39 PM UTC
Duration
6d 14h
Affected: Solana Global Nodes (Solana Mainnet)
Timeline · 6 updates
  1. investigating Jul 24, 2026, 06:18 AM UTC

    All upsttream nodes are lagging in Singapore. We are currently investigating this incident.

  2. monitoring Jul 24, 2026, 07:02 AM UTC

    We implemented a fix and are currently monitoring the result.

  3. identified Jul 24, 2026, 08:37 AM UTC

    The affected nodes are experiencing sync lag again. Our team continues to investigate and work towards a resolution.

  4. identified Jul 24, 2026, 01:16 PM UTC

    Impact has increased to Frankfurt region and nodes are experiencing increased response time for heavy requests. Our team continues to work towards resolution.

  5. monitoring Jul 24, 2026, 01:51 PM UTC

    We implemented a fix, response times have normalized and we will continue monitoring.

  6. resolved Jul 30, 2026, 08:39 PM UTC

    The issue has been resolved, and service performance has remained stable across the affected regions.

Read the full incident report →

Minor July 23, 2026

Degraded Performance on BSC Testnet in the London Region

Detected by Pingoru
Jul 23, 2026, 03:06 PM UTC
Resolved
Jul 23, 2026, 03:33 PM UTC
Duration
27m
Affected: BNB Smart Chain Global Nodes (BNB Smart Chain Testnet)BNB Smart Chain Trader Nodes (BNB Smart Chain Testnet Full (Chainstack Cloud, London))
Timeline · 2 updates
  1. investigating Jul 23, 2026, 03:06 PM UTC

    We are currently investigating this incident.

  2. resolved Jul 23, 2026, 03:33 PM UTC

    The issue was caused by peer connectivity on the affected BSC Testnet node. After updating the trusted peer list, the node successfully caught up and is now fully synced. Service has returned to normal.

Read the full incident report →

Major July 23, 2026

Major outage on Solana Mainnet nodes in Singapore

Detected by Pingoru
Jul 23, 2026, 12:47 PM UTC
Resolved
Jul 23, 2026, 01:58 PM UTC
Duration
1h 10m
Affected: Solana Global Nodes (Solana Mainnet)
Timeline · 3 updates
  1. investigating Jul 23, 2026, 12:47 PM UTC

    We are currently investigating what is causing our Solana Mainnet nodes to respond with 5xx errors.

  2. monitoring Jul 23, 2026, 01:25 PM UTC

    We implemented a fix and are currently monitoring the result.

  3. resolved Jul 23, 2026, 01:58 PM UTC

    This incident has been resolved.

Read the full incident report →

Minor July 23, 2026

Degraded performance on Base Mainnet nodes

Detected by Pingoru
Jul 23, 2026, 08:00 AM UTC
Resolved
Jul 23, 2026, 08:55 AM UTC
Duration
55m
Affected: Base Global Nodes (Base Mainnet)
Timeline · 2 updates
  1. investigating Jul 23, 2026, 08:00 AM UTC

    Our team is currently investigating an issue causing customers to receive 503 errors from their Base Mainnet nodes.

  2. resolved Jul 23, 2026, 08:55 AM UTC

    This incident has been resolved.

Read the full incident report →

Minor July 22, 2026

Service Outage on Berachain Testnet Across All Regions

Detected by Pingoru
Jul 22, 2026, 05:45 PM UTC
Resolved
Jul 22, 2026, 06:35 PM UTC
Duration
49m
Affected: Berachain Global Nodes (Berachain Mainnet)
Timeline · 2 updates
  1. investigating Jul 22, 2026, 05:45 PM UTC

    We are currently investigating this incident.

  2. resolved Jul 22, 2026, 06:35 PM UTC

    The issue was caused by an outdated Berachain Testnet configuration following the network upgrade. The affected nodes have been updated, recovered, and are now operating normally across all regions.

Read the full incident report →

Minor July 22, 2026

Degraded performance on BSC Mainnet (Chainstack Cloud, Ashburn)

Detected by Pingoru
Jul 22, 2026, 07:49 AM UTC
Resolved
Jul 22, 2026, 10:00 AM UTC
Duration
2h 10m
Affected: BNB Smart Chain Global Nodes (BNB Smart Chain Mainnet)BNB Smart Chain Trader Nodes (BNB Smart Chain Mainnet Archive (Chainstack Cloud, Ashburn))
Timeline · 3 updates
  1. investigating Jul 22, 2026, 07:49 AM UTC

    We are currently investigating this incident.

  2. monitoring Jul 22, 2026, 09:20 AM UTC

    We implemented a fix and are currently monitoring the result.

  3. resolved Jul 22, 2026, 10:00 AM UTC

    This incident has been resolved.

Read the full incident report →

Minor July 22, 2026

Degraded performance on Sui Testnet nodes

Detected by Pingoru
Jul 22, 2026, 07:08 AM UTC
Resolved
Jul 22, 2026, 08:10 AM UTC
Duration
1h 1m
Affected: Sui Global Nodes (Sui Testnet)
Timeline · 2 updates
  1. investigating Jul 22, 2026, 07:08 AM UTC

    We are currently investigating the cause of the intermittent timeouts affecting our Sui Testnet nodes.

  2. resolved Jul 22, 2026, 08:10 AM UTC

    This incident has been resolved.

Read the full incident report →

Minor July 21, 2026

Polygon Mainnet - Degraded performance in Ashburn

Detected by Pingoru
Jul 21, 2026, 06:01 PM UTC
Resolved
Jul 21, 2026, 08:31 PM UTC
Duration
2h 30m
Affected: Polygon Global Nodes (Polygon Mainnet)Polygon Trader Nodes (Polygon Mainnet Full (Chainstack Cloud, Ashburn))Polygon Trader Nodes (Polygon Mainnet Archive (Chainstack Cloud, Ashburn))
Timeline · 3 updates
  1. investigating Jul 21, 2026, 06:01 PM UTC

    We are currently investigating this incident, which currently affects connectivity within our cluster.

  2. monitoring Jul 21, 2026, 06:42 PM UTC

    We implemented a fix and are currently monitoring the result.

  3. resolved Jul 21, 2026, 08:31 PM UTC

    This incident has been resolved.

Read the full incident report →

Minor July 21, 2026

Ronin Saigon L2 lagging

Detected by Pingoru
Jul 21, 2026, 06:08 AM UTC
Resolved
Jul 21, 2026, 06:40 AM UTC
Duration
32m
Affected: Ronin Global Nodes (Ronin Saigon)
Timeline · 2 updates
  1. investigating Jul 21, 2026, 06:08 AM UTC

    Ronin Saigon L2 nodes are lagging across all clusters. We are currently investigating this incident.

  2. resolved Jul 21, 2026, 06:40 AM UTC

    This incident has been resolved.

Read the full incident report →

Minor July 19, 2026

Degraded Performance on BSC Mainnet in London

Detected by Pingoru
Jul 19, 2026, 01:21 AM UTC
Resolved
Jul 19, 2026, 05:11 AM UTC
Duration
3h 49m
Affected: BNB Smart Chain Global Nodes (BNB Smart Chain Mainnet)BNB Smart Chain Trader Nodes (BNB Smart Chain Mainnet Archive (Chainstack Cloud, London))BNB Smart Chain Trader Nodes (BNB Smart Chain Mainnet Full (Chainstack Cloud, London))
Timeline · 2 updates
  1. identified Jul 19, 2026, 01:21 AM UTC

    We have identified the issue causing the degraded performance on our BSC Mainnet nodes in London region. Elevated response times are expected for `eth_getLogs` calls. The root cause has been traced to a resource exhaustion. We are currently working on mitigation strategies.

  2. resolved Jul 19, 2026, 05:11 AM UTC

    We implemented a fix by adding more capacity, and things have stabilized. The incident has been resolved.

Read the full incident report →

Minor July 16, 2026

Degraded Performance on Polygon Mainnet Archive in London

Detected by Pingoru
Jul 16, 2026, 02:34 PM UTC
Resolved
Jul 16, 2026, 03:28 PM UTC
Duration
54m
Affected: Polygon Trader Nodes (Polygon Mainnet Archive (Chainstack Cloud, London))
Timeline · 2 updates
  1. investigating Jul 16, 2026, 02:34 PM UTC

    We are currently investigating this incident.

  2. resolved Jul 16, 2026, 03:28 PM UTC

    This incident has been resolved.

Read the full incident report →

Minor July 15, 2026

Degraded performance on Tempo Testnet nodes

Detected by Pingoru
Jul 15, 2026, 02:52 PM UTC
Resolved
Jul 15, 2026, 04:00 PM UTC
Duration
1h 8m
Affected: Tempo Global Nodes (Tempo Moderato Testnet)
Timeline · 2 updates
  1. investigating Jul 15, 2026, 02:52 PM UTC

    We’re currently experiencing degraded performance on our Tempo Testnet nodes due to an ongoing network stress test, as confirmed by the Tempo team.

  2. resolved Jul 15, 2026, 04:00 PM UTC

    Performance has returned to normal, and the issue was resolved at 16:00 UTC. During the incident, the Tempo Testnet was under stress testing, which contributed to the observed degradation. Services are now operating normally.

Read the full incident report →

Notice July 13, 2026

Degraded performance on TON Testnet nodes

Detected by Pingoru
Jul 13, 2026, 12:11 AM UTC
Resolved
Jul 15, 2026, 12:43 PM UTC
Duration
2d 12h
Affected: TON Global Nodes (TON Testnet API v2)TON Global Nodes (TON Testnet API v3)
Timeline · 2 updates
  1. identified Jul 13, 2026, 12:11 AM UTC

    Our team is currently working on a fix for an issue causing our TON Testnet nodes to restart continuously, which is resulting in 503 errors for customers.

  2. resolved Jul 15, 2026, 12:43 PM UTC

    This incident has been resolved.

Read the full incident report →

Minor July 9, 2026

Solana Devnet Outage in Ashburn

Detected by Pingoru
Jul 09, 2026, 08:04 PM UTC
Resolved
Jul 09, 2026, 08:22 PM UTC
Duration
18m
Affected: Solana Global Nodes (Solana Devnet)
Timeline · 2 updates
  1. investigating Jul 09, 2026, 08:04 PM UTC

    We are currently investigating this incident.

  2. resolved Jul 09, 2026, 08:22 PM UTC

    This incident has been resolved.The issue was caused by an unintended simultaneous restart of both backend nodes. Service has been fully restored, and Solana Devnet is operating normally again.

Read the full incident report →

Minor July 9, 2026

BSC Testnet Degraded Performance in Ashburn and London

Detected by Pingoru
Jul 09, 2026, 02:08 PM UTC
Resolved
Jul 10, 2026, 12:30 AM UTC
Duration
10h 21m
Affected: BNB Smart Chain Global Nodes (BNB Smart Chain Testnet)BNB Smart Chain Trader Nodes (BNB Smart Chain Testnet Full (Chainstack Cloud, London))
Timeline · 3 updates
  1. investigating Jul 09, 2026, 02:08 PM UTC

    We are currently investigating this incident.

  2. identified Jul 10, 2026, 12:30 AM UTC

    We are continuing to work on a fix across multiple affected clusters for this incident.

  3. resolved Jul 10, 2026, 12:30 AM UTC

    The issue was fully resolved on Friday at 20:00 UTC, and services have been operating normally since then.

Read the full incident report →

Major July 9, 2026

Major outage on Linea Mainnet nodes

Detected by Pingoru
Jul 09, 2026, 02:00 PM UTC
Resolved
Jul 10, 2026, 03:28 PM UTC
Duration
1d 1h
Affected: Linea Global Nodes (Linea Mainnet)
Timeline · 2 updates
  1. identified Jul 09, 2026, 02:00 PM UTC

    Our team has identified the cause of the issue and is actively working on a resolution. We will provide additional updates as they become available.

  2. resolved Jul 10, 2026, 03:28 PM UTC

    This incident has been resolved.

Read the full incident report →

Minor July 9, 2026

Degraded performance on Arbitrum Sepolia (Chainstack Cloud, Tokyo)

Detected by Pingoru
Jul 09, 2026, 08:52 AM UTC
Resolved
Jul 09, 2026, 09:32 AM UTC
Duration
40m
Affected: Arbitrum Global Nodes (Arbitrum Sepolia)
Timeline · 3 updates
  1. investigating Jul 09, 2026, 08:52 AM UTC

    We are currently investigating this incident.

  2. monitoring Jul 09, 2026, 08:57 AM UTC

    We implemented a fix and are currently monitoring the result.

  3. resolved Jul 09, 2026, 09:32 AM UTC

    This incident has been resolved.

Read the full incident report →

Major July 8, 2026

Berachain Mainnet Sync issue

Detected by Pingoru
Jul 08, 2026, 07:38 PM UTC
Resolved
Jul 08, 2026, 09:10 PM UTC
Duration
1h 31m
Affected: Berachain Global Nodes (Berachain Mainnet)
Timeline · 3 updates
  1. investigating Jul 08, 2026, 07:38 PM UTC

    We are currently investigating this incident.

  2. monitoring Jul 08, 2026, 08:30 PM UTC

    We have identified the cause of the Berachain mainnet sync issue and applied the required configuration update. The affected nodes are recovering, and we are monitoring synchronization progress.

  3. resolved Jul 08, 2026, 09:10 PM UTC

    Berachain mainnet nodes are fully synced and operating normally.

Read the full incident report →