Connection failed. If the problem persists, please check your internet connection or VPN Premature close [unknown]

Bug Reports
1

Describe the Bug

Connection lost, see title I can’t get any connection to cursor it seems. it just times out over and over again.

Steps to Reproduce

Just type anything into the terminal to the agent. I’ve been getting the same error message since about an hour after midnight last night (11hrs now) here in Stockholmregion.
This happent once before. Cursors page says everything is up, but clearly it’s not. This might be a case that the DNS problems from last night are NOT fixed everywhere for some reason

Expected Behavior

No timeout, get an answer back…

Operating System

Windows 10/11

Current Cursor Version (Menu → About Cursor → Copy)

Version: 1.2.4 (user setup)
VSCode Version: 1.99.3
Commit: a8e95743c5268be73767c46944a71f4465d05c90
Date: 2025-07-10T17:09:01.383Z
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

Additional Information

Restarted computer multiple times, tried with and without VPN. All other internet works fine.

Does this stop you from using Cursor

Yes - Cursor is unusable

2

Start a new chat.

3

Hey, which model are you using? Also, is this happening in a new chat?

4

The same problem. I create new chats, change VPN (without VPN doesn’t work in my country), restarted computer multiple times, disabled http2. But it doesn’t work

Connection failed. If the problem persists, please check your internet connection or VPN.

Request info

Request ID: a8b9e4d2-0fdb-4411-a6f6-e28beb475c22
ConnectError: [aborted] aborted
at C9a.$endAiConnectTransportReportError (vscode-file://vscode-app/Applications/Cursor.app/Contents/Resources/app/out/vs/workbench/workbench.desktop.main.js:4757:223764)
at uir.S (vscode-file://vscode-app/Applications/Cursor.app/Contents/Resources/app/out/vs/workbench/workbench.desktop.main.js:492:17741)
at uir.Q (vscode-file://vscode-app/Applications/Cursor.app/Contents/Resources/app/out/vs/workbench/workbench.desktop.main.js:492:17519)
at uir.M (vscode-file://vscode-app/Applications/Cursor.app/Contents/Resources/app/out/vs/workbench/workbench.desktop.main.js:492:16607)
at uir.L (vscode-file://vscode-app/Applications/Cursor.app/Contents/Resources/app/out/vs/workbench/workbench.desktop.main.js:492:15708)
at Bwt.value (vscode-file://vscode-app/Applications/Cursor.app/Contents/Resources/app/out/vs/workbench/workbench.desktop.main.js:492:14500)
at ve.B (vscode-file://vscode-app/Applications/Cursor.app/Contents/Resources/app/out/vs/workbench/workbench.desktop.main.js:48:2398)
at ve.fire (vscode-file://vscode-app/Applications/Cursor.app/Contents/Resources/app/out/vs/workbench/workbench.desktop.main.js:48:2617)
at Git.fire (vscode-file://vscode-app/Applications/Cursor.app/Contents/Resources/app/out/vs/workbench/workbench.desktop.main.js:4744:10379)
at u.onmessage (vscode-file://vscode-app/Applications/Cursor.app/Contents/Resources/app/out/vs/workbench/workbench.desktop.main.js:6968:12271)

Everything work with, example, gpt-4o, but with sonnet not working

5

Creating a new chat worked. (changing from gemini to gpt didn’t). Quite frustrating though before you realize what’s going on.