## Description Cowork mode is stuck on the authenticating/loading screen and never starts. Chat and Code modes work fine. ## Environment - **App version:** 1.1.6041 - **Platform:** win32 x64 - **Claude Code version:** 2.1.72 ## Error from logs \`\`\` [oauth] failed to obtain oauth token for orgId=23a339ff-c18c-4ec2-963d-45a7ed9484a8 (server_error): {"type":"error","error":{"type":"api_error","message":"Internal server error"},"request_id":"req_011CYwTxY77daR5H7XNv1sEn"} Cannot start sessio

Cowork stuck on 'Authenticating' — OAuth token exchange returns 500

Status Fixed / completed

Reported on v2.1.72

Maintainer reply None cached

Workaround ✓ Mentioned in thread ↓

Activity 6 comments · opened Mar 11, 2026 · closed Mar 12, 2026

Description

Cowork mode is stuck on the authenticating/loading screen and never starts. Chat and Code modes work fine.

Environment

App version: 1.1.6041
Platform: win32 x64
Claude Code version: 2.1.72

Error from logs

\\\`
[oauth] failed to obtain oauth token for orgId=23a339ff-c18c-4ec2-963d-45a7ed9484a8 (server_error):
{"type":"error","error":{"type":"api_error","message":"Internal server error"},"request_id":"req_011CYwTxY77daR5H7XNv1sEn"}

Cannot start session local_bda01433-33e7-4aba-8be2-a44ef63c547e: oauth failed (server_error)
Session initialization failed: Unable to start session. The authentication server returned an error (500). You can try again.
\\\`

The OAuth exchange uses a different client ID for Cowork (\a473d7bb-17ac-43a7-abc0-a1343d7c2805\) vs Chat/Code (\9d1c250a-e61b-44d9-88ed-5944d1962f5e\), which may explain why only Cowork is affected.

Steps to reproduce

Open Claude Desktop
Switch to Cowork mode
App stays on "Authenticating" indefinitely

Additional context

Fresh install was attempted — issue persists
Request ID: \req_011CYwTxY77daR5H7XNv1sEn\

View original on GitHub ↗

6 Comments

github-actions[bot] · 5 months ago

Found 3 possible duplicate issues:

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🤖 Generated with Claude Code

paulocoutinhox · 5 months ago

I reverted plugin from 2.1.72 to 2.1.71. Anthropic is making a lot of mistake and recent versions stop works.

rlacatus · 5 months ago

Same here - Claude Code version: 2.1.71 works for me too but not 2.1.72

Reverting back seems to be the workaround at this time.

tsungshenglai · 5 months ago

Claude Code version: 2.1.71 and 2.1.72 still have the same issue here.
OAuth error: timeout of 15000ms exceeded
Claude Max

balexandrov · 5 months ago

Seems to work today.