AI chat stucks completely every few times

Where does the bug appear (feature/product)?

Cursor IDE

Describe the Bug

I use AI chat window to manage app development/fixing, but the AI assistant stucks at some point every few messages and ‘thinks’ endlessly until I stop the task in progress.

Let me know what can I provide to find out the reason of this.

Steps to Reproduce

Just write the AI chat and on some point it stucks while thinking

Operating System

Windows 10/11

Current Cursor Version (Menu → About Cursor → Copy)

Version: 1.7.54 (user setup)
VSCode Version: 1.99.3
Commit: 5c17eb2968a37f66bc6662f48d6356a100b67be0
Date: 2025-10-21T19:07:38.476Z
Electron: 34.5.8
Chromium: 132.0.6834.210
Node.js: 20.19.1
V8: 13.2.152.41-electron.0
OS: Windows_NT x64 10.0.26200

For AI issues: which model did you use?

Standard settings

For AI issues: add Request ID with privacy disabled

Don’t know where to find it

Does this stop you from using Cursor

Yes - Cursor is unusable

1 Like

Hey, thanks for the report. This is a known issue tracked here: Cursor IDE chat sometimes hangs waiting for a response that never arrives

To help the investigation, please share:

  • Which AI model are you using: Auto or a specific one (Claude Sonnet, GPT-4, etc.)?
  • Request ID: when the chat hangs, click the three dots (⋯) in the chat window → “Copy Request ID” (first disable Privacy Mode in Settings → General if needed)
  • Network Diagnostics: go to Cursor Settings → Network → run “Network Diagnostics” while the chat is stuck and share the results
  • Network environment: are you behind a corporate firewall, VPN, or using Cloudflare Zero Trust?

Let me know what you find!

I am experiencing exactly the same problem. I read that link and it mentioned dns resolver, I have my dns set to cloudflare, 1.1.1.1, 1.0.0.1 . I have just changed it to google, and I will let you know if its any better.

@artman Out of curiousity, what dns resolver do you use?

After using the new resolver ip, I had no issues, so it must be related in some way.