Network issues - chat & agent are not working

Support Bug Reports
1

I am also facing this issue for both chat & agent

2

Where does the bug appear (feature/product)?

Cursor IDE

Describe the Bug

Cursor IDE had been working fine for 2 days on my mac, but suddenly started showing network error today when trying agent/ask mode. Same can be seen in Network diagnostics.

Here is the error:
Request ID: c947b59a-57db-4acf-a06f-5a0579922a36
ConnectError: [unknown] Connection failed.
at hre.submitChatMaybeAbortCurrent (vscode-file://vscode-app/Applications/Cursor.app/Contents/Resources/app/out/vs/workbench/workbench.desktop.main.js:4292:9365)
at async yr (vscode-file://vscode-app/Applications/Cursor.app/Contents/Resources/app/out/vs/workbench/workbench.desktop.main.js:4584:88696)

I have tried switching http2 to http1, restarting mac, restaring cursor, re-installing cursor, switching network, adding other DNS…but nothing worked.

Steps to Reproduce

Agent & Ask mode are not working, it shows network error every time

Screenshots / Screen Recordings

Screenshot 2025-09-10 at 2.33.39 PM.png
Screenshot 2025-09-10 at 2.33.39 PM.png1334×1222 62.3 KB

Operating System

MacOS

Current Cursor Version (Menu → About Cursor → Copy)

Version: 1.5.11 (Universal)
VSCode Version: 1.99.3
Commit: 2f2737de9aa376933d975ae30290447c910fdf40
Date: 2025-09-05T03:48:32.332Z
Electron: 34.5.8
Chromium: 132.0.6834.210
Node.js: 20.19.1
V8: 13.2.152.41-electron.0
OS: Darwin x64 21.6.0

For AI issues: add Request ID with privacy disabled

Request ID: c947b59a-57db-4acf-a06f-5a0579922a36

Does this stop you from using Cursor

Yes - Cursor is unusable

3

hi @Vaibhav_Bajpai and thank you for your detailed bug report.

I see you have already tried most suggested approaches. Please let me know following:

  • Was switching network also using a different internet connection?
  • Are you using any API key?
  • Do you have any MCP configured and running?

We do not have outages at this time and others are using Cursor but I hope we can find the cause and solution for your issue.

4

Hi @condor thanks for the reply.

  1. connected to a mobile hotspot which is different internet connection
  2. Yes using firebase API key - but tried commenting it as well, didn’t work
  3. No MCP configured
5

Thank you, I have sent the details to our team and they will have a look.

6

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