Changes / Claude / Elevated errors on Claude Code and Claude Cowork
Claude: Major incident: Elevated errors on Claude Code and Claude Cowork
Summary
Claude reported a major incident affecting Claude Cowork and Claude Code on the web from 2026-08-28 17:22 UTC to 2026-08-28 20:21 UTC, lasting 2 h 59 min. Some sessions failed to start or disconnected mid-task due to an upstream cloud provider issue; affected sessions could be retried. A mitigation was applied before resolution.
Machine-written from the diff below (Sol; type: incident outage). Check the diff before relying on it.
What changed
Before: not present
After: Elevated errors on Claude Code and Claude Cowork
Before: not present
After: major
Before: not present
After: resolved
Before: not present
After: 2026-08-28 17:22 UTC
Before: not present
After: 2026-08-28 20:21 UTC
Before: not present
After: Claude Code, Claude Cowork
Before: not present
After: We have identified an issue with an upstream cloud provider affecting Claude Cowork and Claude Code on the web. Some sessions may fail to start or disconnect mid-task; affected sessions can be retried. We are in contact with the provider and will provide an update as soon as possible.
Before: not present
After: A mitigation has been applied for the issue affecting Claude Cowork and Claude Code on the web, and we are monitoring for recovery. Sessions that disconnected earlier can be retried
Before: not present
After: The issue affecting Claude Cowork and Claude Code on the web has been resolved.
First version of this incident archived by Rewindex. View the live incident (opens in new tab).
History of this incident
| When (UTC) | Change | Kind |
|---|---|---|
| Major incident: Elevated errors on Claude Code and Claude Cowork (this change) Claude reported a major incident affecting Claude Cowork and Claude Code on the web from 2026-08-28 17:22 UTC to 2026-08-28 20:21 UTC, lasting 2 h 59 min. Some sessions failed to start or disconnected mid-task due to an upstream cloud provider issue; affected sessions could be retried. A mitigation was applied before resolution. | Major incident |