# Nebius: Connectivity issues for newly created worker nodes

- Impact (vendor’s label): major
- Status: resolved
- Started: 2026-09-01 16:11 UTC · Resolved: 2026-09-01 16:26 UTC · Duration: 15 min
- Updates: 4 · Affected components: US-CENTRAL1 - Virtual Private Cloud (Networking), Virtual Private Cloud (Networking), EU-NORTH1 - Virtual Private Cloud (Networking), Virtual Private Cloud (Networking), EU-NORTH1 - Managed Service for Kubernetes®, Managed Service for Kubernetes®, Managed Service for Kubernetes®, US-CENTRAL1 - Managed Service for Kubernetes®
- [Vendor status page: https://stspg.io/52mdwq30bjm6](https://stspg.io/52mdwq30bjm6)
- [Company: Nebius](https://rewindex.com/company/nebius.md)

## 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._

## Timeline of updates

- **identified** 2026-09-01 16:11 UTC: 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.
- **monitoring** 2026-09-01 16:24 UTC: The issue may have caused consequential impact to VPC functionality of VMs that are not Managed Service for Kubernetes worker nodes.
- **monitoring** 2026-09-01 16:25 UTC: We are continuing to monitor for any further issues.
- **resolved** 2026-09-01 16:26 UTC: This incident has been resolved.

## Rewindex changes for this incident

- 2026-09-01 16:11 UTC: [Major incident: Connectivity issues for newly created worker nodes](https://rewindex.com/change/if659d92e9efb00.md)


---
Canonical: https://rewindex.com/company/nebius/incidents/j51yrs70wj7x · Markdown: https://rewindex.com/company/nebius/incidents/j51yrs70wj7x.md · JSON: https://rewindex.com/api/v1/companies/nebius/incidents/j51yrs70wj7x · Generated 2026-10-20T00:06:08.736Z