Connection failed. If the problem persists, please check your internet connection or VPN 2

Bug Reports
1

Where does the bug appear (feature/product)?

Cursor IDE

Describe the Bug

Every 10 min in average I get this message. Model usage does not impact the behaviour.
It started couple of days ago but today it is very frequent.

Steps to Reproduce

nothing special- just prompt

Operating System

Windows 10/11

Current Cursor Version (Menu → About Cursor → Copy)

Version: 1.7.46 (user setup)
VSCode Version: 1.99.3
Commit: b9e5948c1ad20443a5cecba6b84a3c9b99d62580
Date: 2025-10-14T01:21:46.830Z
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 10.0.26100

For AI issues: add Request ID with privacy disabled

Request Info: Request ID: 086ba9a3-241c-4639-bd75-6013d8b579e8
ConnectError: [internal] Stream closed with error code NGHTTP2_INTERNAL_ERROR
at ZWl.$endAiConnectTransportReportError (vscode-file://vscode-app/c:/Users/passuff/AppData/Local/Programs/cursor/resources/app/out/vs/workbench/workbench.desktop.main.js:7349:371721)
at wMr._doInvokeHandler (…)

Does this stop you from using Cursor

Yes - Cursor is unusable

2

Hey, thanks for the report. NGHTTP2_INTERNAL_ERROR usually indicates an HTTP/2 compatibility issue.

What to try first:

  1. Open app settings with Ctrl+, (comma)
  2. Search for “http2”
  3. Enable “Disable Http2”
  4. Restart Cursor

If that doesn’t help, please share:

  • Do you have any MCP servers configured?
  • Are you on a corporate network or using a VPN?
  • Does your firewall show any blocks for Cursor?

Some users also fixed this by disabling unused MCP servers when too many tools were configured (around 40+).

Additionally, try adding Google’s DNS to your network settings: 8.8.8.8. Some users report this resolves the issue.

Let me know if disabling HTTP/2 helps.

3

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