# MongoDB Atlas: Major incident: Investigating connection issues to ADFA in GCP

**Summary:** A major outage affected connections and queries to MongoDB Atlas Data Federation and Online Archive instances in GCP regions from 2026-06-02 23:00 UTC to 2026-06-03 00:11 UTC, lasting 1 h 11 min. MongoDB identified a networking issue in GCP regions and reported mitigation, with connections working at resolution. _(machine-written, sol)_
- Kind: Major incident · Label: outage (model (Jev))
- Changed: 2026-06-02 23:00 UTC · Detected: 2026-10-17 18:22 UTC
- [Source: https://stspg.io/w33p0jhw9mlr](https://stspg.io/w33p0jhw9mlr)
- [Company: MongoDB Atlas](https://rewindex.com/company/mongodb-atlas.md)
- Versions: before (none: first archived) → after incident\_version:152/gwq51m3r62jc@9927c72d433d
- Change 1 of 1 for this incident

## What changed

**1. Added: Title**

```diff
+ Investigating connection issues to ADFA in GCP
```

**2. Added: Impact**

```diff
+ major
```

**3. Added: Status**

```diff
+ resolved
```

**4. Added: Start time**

```diff
+ 2026-06-02 23:00 UTC
```

**5. Added: Resolved time**

```diff
+ 2026-06-03 00:11 UTC
```

**6. Added: Affected components**

```diff
+ MongoDB Atlas Data Federation and Online Archive
```

**7. Added: Update** (investigating) · 2026-06-02 23:00 UTC

```diff
+ We are currently investigating issues connecting and querying to Atlas Data Federation and Online Archive instances in GCP regions
```

**8. Added: Update** (identified) · 2026-06-02 23:42 UTC

```diff
+ We've identified an issue with networking in GCP regions and are working on fix
```

**9. Added: Update** (identified) · 2026-06-03 00:01 UTC

```diff
+ Issues connecting to ADF and OA instances in GCP belgium-eu region has been mitigated, and working on other GCP regions.
```

**10. Added: Update** (monitoring) · 2026-06-03 00:05 UTC

```diff
+ All ADF and OA connections in GCP are reporting as successful, and we will continue to monitor.
```

**11. Added: Update** (resolved) · 2026-06-03 00:11 UTC

```diff
+ Issue has been mitigated and connections should be working now to ADF and OA instances in GCP regions.
```

## History of this incident

| When (UTC) | Change | Label |
| --- | --- | --- |
| 2026-06-02 23:00 UTC | Major incident: Investigating connection issues to ADFA in GCP (this change) | outage |

All MongoDB Atlas changes: [timeline](https://rewindex.com/company/mongodb-atlas/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/i9d5b4619bcfedb · Markdown: https://rewindex.com/change/i9d5b4619bcfedb.md · JSON: https://rewindex.com/api/v1/changes/i9d5b4619bcfedb · Generated 2026-10-18T00:38:56.871Z