# ChatGPT: Major incident: Issues with login, signup, and ads

**Summary:** ChatGPT reported a major outage affecting login, signup, and ads from 2026-10-01 18:46 UTC to 2026-10-01 19:39 UTC, lasting 53 min. A mitigation was applied at 19:26 UTC, and all impacted services fully recovered by resolution. _(machine-written, sol)_
- Kind: Major incident · Label: outage (model (Jev))
- Changed: 2026-10-01 18:46 UTC · Detected: 2026-10-17 18:22 UTC
- [Source: https://status.openai.com/incidents/01M3WCKTAN41RZ01SBRRTY4AYM](https://status.openai.com/incidents/01M3WCKTAN41RZ01SBRRTY4AYM)
- [Company: ChatGPT](https://rewindex.com/company/chatgpt.md)
- Versions: before (none: first archived) → after incident\_version:5/01M3WCKTAN41RZ01SBRRTY4AYM@e10c4f5ae698
- Change 1 of 1 for this incident

## What changed

**1. Added: Title**

```diff
+ Issues with login, signup, and ads
```

**2. Added: Impact**

```diff
+ major
```

**3. Added: Status**

```diff
+ resolved
```

**4. Added: Start time**

```diff
+ 2026-10-01 18:46 UTC
```

**5. Added: Resolved time**

```diff
+ 2026-10-01 19:39 UTC
```

**6. Added: Update** (investigating) · 2026-10-01 18:46 UTC

```diff
+ We are investigating an issue affecting login and signup. We will share further updates as we learn more.
```

**7. Added: Update** (investigating) · 2026-10-01 19:06 UTC

```diff
+ We are investigating issues affecting login, signup, and ads
```

**8. Added: Update** (identified) · 2026-10-01 19:17 UTC

```diff
+ We have identified that users are experiencing login issues for the impacted services. We are working on implementing a mitigation.
```

**9. Added: Update** (monitoring) · 2026-10-01 19:26 UTC

```diff
+ We have applied the mitigation and are monitoring the recovery.
```

**10. Added: Update** (resolved) · 2026-10-01 19:39 UTC

```diff
+ All impacted services have now fully recovered.
```

## History of this incident

| When (UTC) | Change | Label |
| --- | --- | --- |
| 2026-10-01 18:46 UTC | Major incident: Issues with login, signup, and ads (this change) | outage |

All ChatGPT changes: [timeline](https://rewindex.com/company/chatgpt/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._


---
Canonical: https://rewindex.com/change/ia0547c18d132ad · Markdown: https://rewindex.com/change/ia0547c18d132ad.md · JSON: https://rewindex.com/api/v1/changes/ia0547c18d132ad · Generated 2026-10-18T02:31:48.312Z