# Nebius: Major incident: Connectivity issues for newly created worker nodes

**Summary:** _summary pending_
## Part of an outage event

- [Google Cloud us-central1 outage, Sep 1, 2026: 47 vendors, 54 incidents](https://rewindex.com/events/2026-09-01-google-cloud-us-central1)
- This incident started in the same window without naming Google Cloud (timing only, not evidence of a link). (hop 1, posted +1 h 30 min vs Google Cloud’s own post)

```mermaid
flowchart LR
  root["Google Cloud us-central1<br/>posted 14:42 UTC"]:::root
  h1["Within an hour<br/>8 vendors, 8 blamed Google Cloud<br/>Pinecone, Elastic Cloud, FullStory +5"]:::blames
  root --> h1
  h4["1 to 4 hours later<br/>6 vendors, 6 blamed Google Cloud<br/>Apollo GraphQL, Temporal Cloud, Clerk +3"]:::blames
  root --> h4
  p0["GitHub<br/>posted +18 min, did not name Google Cloud"]:::timing
  root -.-> p0
  k0["Bolt.new<br/>+24 min"]:::hop2
  p0 -->|"blamed GitHub"| k0
  p1["Twilio<br/>posted +1 h 42 min, did not name Google Cloud"]:::timing
  root -.-> p1
  k1["Gorgias, Iterable<br/>+2 h 23 min to +2 h 37 min"]:::hop2
  p1 -->|"blamed Twilio"| k1
  me["Nebius (this incident)<br/>posted +1 h 30 min"]:::me
  root -.->|"same window"| me
```

_Detected automatically from incidents that started together and named the same provider; a link means one incident named another vendor, not a confirmed cause._

- Kind: Major incident · Label: major (vendor)
- Changed: 2026-09-01 16:11 UTC · Detected: 2026-10-19 17:03 UTC
- [Source: https://stspg.io/52mdwq30bjm6](https://stspg.io/52mdwq30bjm6)
- [Company: Nebius](https://rewindex.com/company/nebius.md)
- Versions: before (none: first archived) → after incident\_version:681/j51yrs70wj7x@f37f64ed89fb
- Change 1 of 1 for this incident

Incident page (full timeline): [Connectivity issues for newly created worker nodes](https://rewindex.com/company/nebius/incidents/j51yrs70wj7x.md)
## What changed

**1. Added: Title**

```diff
+ Connectivity issues for newly created worker nodes
```

**2. Added: Impact**

```diff
+ major
```

**3. Added: Status**

```diff
+ resolved
```

**4. Added: Start time**

```diff
+ 2026-09-01 16:11 UTC
```

**5. Added: Resolved time**

```diff
+ 2026-09-01 16:26 UTC
```

**6. Added: Affected components**

```diff
+ EU-NORTH1 - Managed Service for Kubernetes®, EU-NORTH1 - Virtual Private Cloud (Networking), Managed Service for Kubernetes®, US-CENTRAL1 - Managed Service for Kubernetes®, US-CENTRAL1 - Virtual Private Cloud (Networking), Virtual Private Cloud (Networking)
```

**7. Added: Update** (identified) · 2026-09-01 16:11 UTC

```diff
+ Worker nodes of Managed Service for Kubernetes clusters created after 15:13 CET Sep 1 2026 could experience problems connecting to/from other nodes in the same cluster. The root cause is understood and mitigation is underway.
```

**8. Added: Update** (monitoring) · 2026-09-01 16:24 UTC

```diff
+ The issue may have caused consequential impact to VPC functionality of VMs that are not Managed Service for Kubernetes worker nodes.
```

**9. Added: Update** (monitoring) · 2026-09-01 16:25 UTC

```diff
+ We are continuing to monitor for any further issues.
```

**10. Added: Update** (resolved) · 2026-09-01 16:26 UTC

```diff
+ This incident has been resolved.
```

## History of this incident

| When (UTC) | Change | Label |
| --- | --- | --- |
| 2026-09-01 16:11 UTC | Major incident: Connectivity issues for newly created worker nodes (this change) | major |

All Nebius changes: [timeline](https://rewindex.com/company/nebius/changes.md)
_Diff excerpts are shown on normalized text: dates, counters and tokens appear as ‹date›, ‹count›, ‹tok›; noise-only edits are hidden. Rewindex shows the changed passages, not a copy of the page._


---
Canonical: https://rewindex.com/change/if659d92e9efb00 · Markdown: https://rewindex.com/change/if659d92e9efb00.md · JSON: https://rewindex.com/api/v1/changes/if659d92e9efb00 · Generated 2026-10-20T00:01:02.650Z