Connection failed occurs very often, strangely when I restart cursor it goes away. So I don't think it's connection error

as title states,

Request ID: e8f1df3e-4ad8-490a-addc-e22c1c9c46c7
ConnectError: [unknown] No response from model
at Lle.submitChatMaybeAbortCurrent (vscode-file://vscode-app/c:/Users/publi/AppData/Local/Programs/cursor/resources/app/out/vs/workbench/workbench.desktop.main.js:2068:26077)

Version: 0.51.2 (user setup)
VSCode Version: 1.96.2
Commit: f364e608fc11d38303429b80fd1e1f32d7587d40
Date: 2025-06-03T09:19:54.173Z
Electron: 34.5.1
Chromium: 132.0.6834.210
Node.js: 20.19.0
V8: 13.2.152.41-electron.0
OS: Windows_NT x64 10.0.19045

2 Likes

I’m having the same problem here. Usually, restarting the IDE fixes it, but now nothing I do seems to solve the issue.

After a few attempts, it normally starts working again on its own. However, today it fails more often than it returns a response.

Same for me. Been like this for a few days now. Waiting for support to help (going round and round in circles with ‘Sam’ the AI support assistant). I am using a standard consumer fibre broadband account on Windows 11 Pro. No VPN. All has been fine until a few days ago. No changes on my system. It started by saying no internet connection (the internet is ‘always on’ for me - very rarely ever fails). I can also load the standard VSCode and use AI’s with that no problem (and browsers and everything else internet related including writing to this forum right now, while Cursor is telling me I have no internet connection - ‘Sam’ suggested I turn off http/2, restart and try again etc. all of which showed that everything was working fine according to Network Statistics - in all modes http/1 and http/1.1 as well).

I am having the same issue after I upgraded.

Request ID: 64a24e32-d0cf-4101-9296-4c50ed84921f
ConnectError: [unknown] No response from model
at Lle.submitChatMaybeAbortCurrent (vscode-file://vscode-app/c:/Users/jaadb/AppData/Local/Programs/cursor/resources/app/out/vs/workbench/workbench.desktop.main.js:2068:22289)
at async Object.Qi [as onSubmit] (vscode-file://vscode-app/c:/Users/jaadb/AppData/Local/Programs/cursor/resources/app/out/vs/workbench/workbench.desktop.main.js:4016:16751)

Version: 1.0.0 (user setup)
VSCode Version: 1.96.2
Commit: 53b99ce608cba35127ae3a050c1738a959750860
Date: 2025-06-04T19:44:25.253Z
Electron: 34.5.1
Chromium: 132.0.6834.210
Node.js: 20.19.0
V8: 13.2.152.41-electron.0
OS: Windows_NT x64 10.0.26100

This has now been reported multiple times over multiple weeks without any response from the Cursor team yet, afaik. I’ll respond here since it seems to be the most recent.

I have a potential solution that I found in a different thread on this error. While restarting Cursor, restarting my machine, downgrading Cursor, and restarting my network adapter didn’t fix it, for some reason creating a New Chat did! This may work for y’all too.

Whatever is happening, it’s clear that in many cases it has nothing to do with networking or model availability. Error reporting needs to be improved as well as whatever underlying issue (perhaps a resource limit?) is actually causing the error.