Issues using Cursor models

Where does the bug appear (feature/product)?

Cursor IDE

Describe the Bug

Can’t properly use the Cursor models, it just stuck on ‘Taking longer than expected…’

Steps to Reproduce

Just add a new prompt.

Operating System

Windows 10/11

Version Information

Version: 3.21.16 (user setup)
VS Code Extension API: 1.128.0
Commit: 8ae78e8eee1e63479c7e0504b664bc0a80c68000
Date: 2026-09-19T06:43:22.276Z
Layout: IDE
Build Type: Stable
Release Track: Default
Electron: 42.10.0
Chromium: 148.0.7778.280
Node.js: 24.18.1
V8: 14.8.178.38-electron.0
xterm.js: 6.1.0-beta.291
OS: Windows_NT x64 10.0.26200

Does this stop you from using Cursor

Yes - Cursor is unusable

Hey, thanks for the report. I checked on my side and your account and network look fine. The requests that were hanging weren’t actually leaving your machine. This is a known issue on Windows in 3.21.x that we’re tracking. I also see that shortly after you posted, things started working again.

What has helped other users when it happens again:

  1. Fully quit Cursor using the tray icon right click or Task Manager, not just Reload Window, then reopen it.
  2. Add Cursor to Windows Defender exclusions: Windows Security > Virus & threat protection > Manage settings > Add or remove exclusions > Add an exclusion > Process > enter Cursor.exe. Then restart Cursor.
  3. If it still hangs: Cursor Settings > Network > HTTP Compatibility Mode > HTTP/1.1, then restart Cursor again.

If it happens again, wait about a minute while it’s hanging, then open the Command Palette Ctrl+Shift+P and run Developer: Capture and Send Debugging Data. Since you have Privacy Mode enabled, the data will be saved locally. Please attach that zip here along with the time it happened and your time zone. That will give us an exact trace.

Let me know how it goes.