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Claude Code Issues / #52765

[BUG] Server is busy Claude cowork desktop error

Open 💬 15 comments Opened Apr 24, 2026 by Hurricane153

Preflight Checklist

  • [x] I have searched existing issues and this hasn't been reported yet
  • [x] This is a single bug report (please file separate reports for different bugs)
  • [x] I am using the latest version of Claude Code

What's Wrong?

When i try to use claude cowork I consistently get message server is busy, then after 10 attempts i get this error message: Failed to authenticate. API Error: 401 {"type":"error","error":{"type":"authentication_error","message":"Invalid bearer token"},"request_id":"req_011CaNG1Fxm2bmkq6rrdYosa"}

What Should Happen?

Claude cowork should run normally.

Error Messages/Logs

Failed to authenticate. API Error: 401 {"type":"error","error":{"type":"authentication_error","message":"Invalid bearer token"},"request_id":"req_011CaNG1Fxm2bmkq6rrdYosa"}

Steps to Reproduce

  1. Open claude desktop app
  2. Run claude cowork

Claude Model

None

Is this a regression?

Yes, this worked in a previous version

Last Working Version

_No response_

Claude Code Version

claude cowork

Platform

Anthropic API

Operating System

Windows

Terminal/Shell

PowerShell

Additional Information

_No response_

View original on GitHub ↗

15 Comments

github-actions[bot] · 2 months ago

Found 3 possible duplicate issues:

  1. https://github.com/anthropics/claude-code/issues/51748
  2. https://github.com/anthropics/claude-code/issues/41481
  3. https://github.com/anthropics/claude-code/issues/44654

This issue will be automatically closed as a duplicate in 3 days.

  • If your issue is a duplicate, please close it and 👍 the existing issue instead
  • To prevent auto-closure, add a comment or 👎 this comment

🤖 Generated with Claude Code

Hurricane153 · 2 months ago

This is not a duplicate, the issue hasnt been solved

ryangreenwood21 · 2 months ago

This is not a duplicate issue for the other ones listed. I have this issue as well. Only solution is to uninstall claude and reinstall each time I need to use cowork.

tlallison · 2 months ago

Getting the exact same issue. Have been for the past several days. I haven't tried completely uninstalling/reinstalling to resolve, but the regular patch updates do not seem to resolve.

brandongrable · 2 months ago

Getting the same issue here too!

chelsea-tech-git · 2 months ago

same CO-Work has become completely unusable.

A-M-A-Design · 2 months ago

placeholder

ronbadu-debug · 2 months ago

me too ! just can't work with it
solution ??

Eworx-tc · 2 months ago

It also does not work on the Mac!

sysuyep · 1 month ago

me too ! just can't work with it

phreakwenci · 1 month ago

I also have this issue still

ImanYZ · 1 month ago

It's really frustrating that after spending a long time working on a task and spending a lot of tokens, Claude Code desktop app showed this error and when I clicked the "Try again" button, it restarted everything from scratch!

ryangreenwoood · 1 month ago

so are we just leaving this as an issue or.......?

akivayevdayev-debug · 24 days ago

Try closing your vpn or reinstalling claude

FindingLand · 24 days ago

Yes,
It's a bug they have on their side
Do this in order:

  1. Start a new session
  2. Not working? Close fully and restart
  3. Not working? Uninstall and Install again
  4. Use a VPN and that will use another server if you choose the right IP. Check online for more info abour this