Connection to server got closed. Server will not be restarted

[Josue_Waffo]

Where does the bug appear (feature/product)?

Cursor IDE

Describe the Bug

Hi there,

Need help to connect to server. It happened suddenly in the middle of building my project and as was just about to PR on GitHub. The popup error msg reads “An unexpected error occurred on our servers. Please try again, or contact support if the issue persists.”

Need help URGENTLY.

Below Request pasted.

Request ID: 697ff803-fc56-4460-bdcf-6da2659de2d4
[internal] Blob not found
LTe: [internal] Blob not found
at kmf (vscode-file://vscode-app/Applications/Cursor.app/Contents/Resources/app/out/vs/workbench/workbench.desktop.main.js:9095:38337)
at Cmf (vscode-file://vscode-app/Applications/Cursor.app/Contents/Resources/app/out/vs/workbench/workbench.desktop.main.js:9095:37240)
at $mf (vscode-file://vscode-app/Applications/Cursor.app/Contents/Resources/app/out/vs/workbench/workbench.desktop.main.js:9096:4395)
at ova.run (vscode-file://vscode-app/Applications/Cursor.app/Contents/Resources/app/out/vs/workbench/workbench.desktop.main.js:9096:8170)
at async qyt.runAgentLoop (vscode-file://vscode-app/Applications/Cursor.app/Contents/Resources/app/out/vs/workbench/workbench.desktop.main.js:34193:57047)
at async Wpc.streamFromAgentBackend (vscode-file://vscode-app/Applications/Cursor.app/Contents/Resources/app/out/vs/workbench/workbench.desktop.main.js:34242:7695)
at async Wpc.getAgentStreamResponse (vscode-file://vscode-app/Applications/Cursor.app/Contents/Resources/app/out/vs/workbench/workbench.desktop.main.js:34242:8436)
at async FTe.submitChatMaybeAbortCurrent (vscode-file://vscode-app/Applications/Cursor.app/Contents/Resources/app/out/vs/workbench/workbench.desktop.main.js:9170:14575)

Regards,
Josue TW

From South Africa

Steps to Reproduce

1. I open my project in Cursor (the tfa_website folder).
2. I work normally for a while — editing files, using the AI chat or Plan/Composer features (like asking it to continue building or review code).
3. Suddenly, while I’m still working (sometimes in the middle of an AI response or when trying to commit/PR to GitHub), a popup appears in the bottom right: “Internal Error - An unexpected error occurred on our servers. Please try again, or contact support if the issue persists.” with a request ID like d604… or e8ea…
4. At the same time, in the bottom Output panel (or terminal-like area), I see red error messages repeating: “[Error - 11:xx:xx PM] Connection to server got closed. Server will not be restarted.”
5. After that, AI features (chat, agent, code suggestions) stop working properly — they either fail or hang.
6. I try restarting Cursor, but the error comes back after a few minutes of use.

Screenshots / Screen Recordings

Operating System

MacOS

Version Information

Version: 2.4.23
VSCode Version: 1.105.1
Commit: 379934e04d2b3290cf7aefa14560f942e4212920
Date: 2026-01-29T21:24:23.350Z
Build Type: Stable
Release Track: Default
Electron: 39.2.7
Chromium: 142.0.7444.235
Node.js: 22.21.1
V8: 14.2.231.21-electron.0
OS: Darwin arm64 23.5.0

Does this stop you from using Cursor

Yes - Cursor is unusable

[deanrie]

Hey, thanks for the report. This is a common cause of these kinds of errors.

Try this:

• Settings > Network > HTTP Compatibility Mode, switch it to HTTP/1.1
• Restart Cursor

If that doesn’t help, run Network Diagnostics (click Run Diagnostic on the same screen as in your screenshot) and share the results here. Also let me know if you’re using a VPN or a corporate proxy.