# Ably: Major incident: Elevated Error Rate in ap-southeast-1

**Summary:** Ably reported a major incident with elevated errors in ap-southeast-1, affecting Ably Pub/Sub - Asia-Pacific (Singapore) and Asia-Pacific (Singapore). It started at 2026-08-20 19:07 UTC and was resolved at 2026-08-20 19:10 UTC; the computed duration was 2 min. No cause or fix was stated. _(machine-written, sol)_
- Kind: Major incident · Label: outage (model (Jev))
- Changed: 2026-08-20 19:07 UTC · Detected: 2026-10-17 18:22 UTC
- [Source: https://stspg.io/2n6lxzklnxnr](https://stspg.io/2n6lxzklnxnr)
- [Company: Ably](https://rewindex.com/company/ably.md)
- Versions: before (none: first archived) → after incident\_version:173/vxhgyq0fjhvt@1c6e80d9b7eb
- Change 1 of 1 for this incident

## What changed

**1. Added: Title**

```diff
+ Elevated Error Rate in ap-southeast-1
```

**2. Added: Impact**

```diff
+ major
```

**3. Added: Status**

```diff
+ resolved
```

**4. Added: Start time**

```diff
+ 2026-08-20 19:07 UTC
```

**5. Added: Resolved time**

```diff
+ 2026-08-20 19:10 UTC
```

**6. Added: Affected components**

```diff
+ Ably Pub/Sub - Asia-Pacific (Singapore), Asia-Pacific (Singapore)
```

**7. Added: Update** (investigating) · 2026-08-20 19:07 UTC

```diff
+ We're experiencing an elevated level of errors in the ap-southeast-1 region and are currently looking into the issue.
```

**8. Added: Update** (resolved) · 2026-08-20 19:10 UTC

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

## History of this incident

| When (UTC) | Change | Label |
| --- | --- | --- |
| 2026-08-20 19:07 UTC | Major incident: Elevated Error Rate in ap-southeast-1 (this change) | outage |

All Ably changes: [timeline](https://rewindex.com/company/ably/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/i9f47ba8d583e4c · Markdown: https://rewindex.com/change/i9f47ba8d583e4c.md · JSON: https://rewindex.com/api/v1/changes/i9f47ba8d583e4c · Generated 2026-10-18T00:38:48.659Z