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Claude down: Why it says account temporarily unable to authenticate

Anthropic's Claude services experienced elevated errors on Tuesday morning, with more than 10,000 users reporting issues shortly after 10 a.m. ET according to Downdetector. Anthropic's status page confirmed the errors affected Claude.ai, Claude Code, Claude Cowork, and Claude's API, and the company said users "may see failed requests, errors loading or sending conversations, or be asked to sign in again," though retrying may succeed.

by read1 min views2 publishedSep 29, 2026
Claude down: Why it says account temporarily unable to authenticate
Image: Mashable (auto-discovered)

What we know so far.

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Credit: Photo by Leon Neal/Getty Images

Anthropic's Claude is reportedly down on Tuesday Morning.

More than 10,000 users began reporting issues shortly after 10 a.m. ET, according to Downdetector.

Elevated errors were confirmed on Claude.ai, Claude Code, Claude Cowork, and Claude's API, according to Anthropic's status page. Mashable Light Speed

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Users attempting to use the services "may see failed requests, errors or sending conversations, or be asked to sign in again," according to Anthropic. However, retrying may succeed, the company notes.

Topics

[Artificial Intelligence](https://mashable.com/category/artificial-intelligence)
[Anthropic](https://mashable.com/category/anthropic)

Eric Miller

Eric Miller is the editorial director of Mashable.

source & further reading
mashable.com — original article Inside the OpenAI Medicare breach: Rogue research agent triggers global AI security alarm Muse AI Exposed User Address At FB Marketplace; Tanked Price & Arranged Pickup Without Informing! Anthropic releases Claude Sonnet 5.5, a faster and cheaper follow-up to Opus 5.5
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