# PlanetScale: Major incident: AWS us-east-1 connectivity failures

**Summary:** PlanetScale reported a major incident affecting a small number of database branches in AWS us-east-1, with connectivity failures scoped to one AZ causing replica delay and connectivity issues. It started at 2026-10-09 22:53 UTC and was resolved at 2026-10-09 23:19 UTC, lasting 25 min; the vendor said cross-zone networking fully recovered. _(machine-written, sol)_
- Kind: Major incident · Label: outage (model (Jev))
- Changed: 2026-10-09 22:53 UTC · Detected: 2026-10-17 18:22 UTC
- [Source: https://www.planetscalestatus.com/incidents/01M4HDY5JA1ZGFD2GM5518AS49](https://www.planetscalestatus.com/incidents/01M4HDY5JA1ZGFD2GM5518AS49)
- [Company: PlanetScale](https://rewindex.com/company/planetscale.md)
- Versions: before (none: first archived) → after incident\_version:157/01M4HDY5JA1ZGFD2GM5518AS49@23b2a96f401b
- Change 1 of 1 for this incident

## What changed

**1. Added: Title**

```diff
+ AWS us-east-1 connectivity failures
```

**2. Added: Impact**

```diff
+ major
```

**3. Added: Status**

```diff
+ resolved
```

**4. Added: Start time**

```diff
+ 2026-10-09 22:53 UTC
```

**5. Added: Resolved time**

```diff
+ 2026-10-09 23:19 UTC
```

**6. Added: Update** (investigating) · 2026-10-09 22:53 UTC

```diff
+ We are investigating reports of connectivity failures scoped to a single AZ in AWS us-east-1 causing replica delay and connectivity issues.
```

**7. Added: Update** (monitoring) · 2026-10-09 23:13 UTC

```diff
+ A small number of database branches in AWS us-east-1 were impacted by cross-zone networking issues, for which the impact window has ended. If you continue to see impact, please reach out to PlanetScale support.
```

**8. Added: Update** (resolved) · 2026-10-09 23:19 UTC

```diff
+ AWS us-east-1 cross-zone networking has fully recovered.
```

## History of this incident

| When (UTC) | Change | Label |
| --- | --- | --- |
| 2026-10-09 22:53 UTC | Major incident: AWS us-east-1 connectivity failures (this change) | outage |

All PlanetScale changes: [timeline](https://rewindex.com/company/planetscale/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._


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Canonical: https://rewindex.com/change/i61dc3349fcc190 · Markdown: https://rewindex.com/change/i61dc3349fcc190.md · JSON: https://rewindex.com/api/v1/changes/i61dc3349fcc190 · Generated 2026-10-18T01:30:23.808Z