# Grammarly: Critical incident: Grammarly is experiencing a service interruption, some Grammarly users may be unable to log in

**Summary:** Grammarly reported a critical service interruption that left some users unable to log in, starting at 2025-01-22 19:35 UTC and resolved at 2025-01-22 21:58 UTC, lasting 2 h 23 min. The vendor identified the root cause without disclosing it and implemented a fix; affected components included Login, Writing Suggestions, Generative AI assistance, and Billing Service. _(machine-written, sol)_
- Kind: Major incident · Label: outage (model (Jev))
- Changed: 2025-01-22 19:35 UTC · Detected: 2026-10-17 18:22 UTC
- [Source: https://stspg.io/j9zz7n5q6r4m](https://stspg.io/j9zz7n5q6r4m)
- [Company: Grammarly](https://rewindex.com/company/grammarly.md)
- Versions: before (none: first archived) → after incident\_version:21/yq8lhq5lxvp4@e64fc0190ee2
- Change 1 of 1 for this incident

## What changed

**1. Added: Title**

```diff
+ Grammarly is experiencing a service interruption, some Grammarly users may be unable to log in
```

**2. Added: Impact**

```diff
+ critical
```

**3. Added: Status**

```diff
+ resolved
```

**4. Added: Start time**

```diff
+ 2025-01-22 19:35 UTC
```

**5. Added: Resolved time**

```diff
+ 2025-01-22 21:58 UTC
```

**6. Added: Affected components**

```diff
+ Account Management, Billing Service, Generative AI assistance, Grammarly Editor, Grammarly for Mac, Grammarly for Windows, Grammarly's Browser Extension, Login, Writing Suggestions
```

**7. Added: Update** (identified) · 2025-01-22 19:35 UTC

```diff
+ The root cause of the issue has been identified. Please bear with us while we’re working on implementing a fix.
```

**8. Added: Update** (identified) · 2025-01-22 20:14 UTC

```diff
+ We are continuing to work on a fix for this issue.
```

**9. Added: Update** (monitoring) · 2025-01-22 21:14 UTC

```diff
+ Our team has implemented a fix and is currently monitoring the results. Some affected services have already recovered.
```

**10. Added: Update** (resolved) · 2025-01-22 21:58 UTC

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

## History of this incident

| When (UTC) | Change | Label |
| --- | --- | --- |
| 2025-01-22 19:35 UTC | Critical incident: Grammarly is experiencing a service interruption, some Grammarly users may be unable to log in (this change) | outage |

All Grammarly changes: [timeline](https://rewindex.com/company/grammarly/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/ia45913262de1ca · Markdown: https://rewindex.com/change/ia45913262de1ca.md · JSON: https://rewindex.com/api/v1/changes/ia45913262de1ca · Generated 2026-10-18T02:54:43.312Z