Desktop app returns ERROR_UNAUTHORIZED after update 2.6.22

Describe the Bug

After updating Cursor to version 2.6.22, all AI features in the desktop app stopped working.

Current behavior:

  • Agent mode returns ERROR_UNAUTHORIZED
  • normal chat mode also returns ERROR_UNAUTHORIZED
  • issue happens even in an empty test project
  • reinstalling Cursor did not fix it
  • logout/login did not fix it
  • running as administrator did not fix it
  • billing and Pro subscription are active and normal on the website

Tested on:

  • Windows 10 x64
  • Cursor 2.6.22 Stable
  • clean reinstall already performed

Recent Request IDs:

  • d6429d34-3a19-4720-8265-a1d8a1fdf678
  • 66c5cc2e-eee5-41be-860b-7f707aff77b6

This started immediately after the update.

Steps to Reproduce

  1. Update Cursor desktop app to version 2.6.22
  2. Open any project (including an empty test folder)
  3. Open AI chat
  4. Try Agent mode or normal chat mode
  5. Send a simple prompt such as: Say only: ok
  6. The app immediately returns ERROR_UNAUTHORIZED / User is unauthorized

Operating System

Windows 10/11

Version Information

Cursor Version: 2.6.22 (Stable)
VSCode Version: 1.105.1
Commit: c6285feaba0ad62603f7c22e72f0a170dc8415a0
Electron: 39.8.1
Chromium: 142.0.7444.265
Node.js: 22.22.1
OS: Windows 10 x64 (10.0.19045)

Does this stop you from using Cursor

Yes - Cursor is unusable

Hey, thanks for the detailed report and the request IDs.

On Windows, this error is often caused by your system clock being out of sync. Try this first:

  1. Windows Settings > Time & Language > Date & Time
  2. Make sure Set time automatically is turned on
  3. Click Sync now
  4. Fully close Cursor, and check in Task Manager that no Cursor processes are still running
  5. Start Cursor again

If that didn’t help, try a full app data reset:

  1. Sign out in Cursor Settings
  2. Fully close Cursor in Task Manager
  3. Delete the %APPDATA%\Cursor folder completely, back it up first
  4. Start Cursor and sign in again

Let me know how it goes.

1 Like