After upgrade to Cursor 3, worked for sometime but now getting error: An unexpected error occurred. Request ID: 5d29aac8-df08-41e7-be4e-bab76c1c3a79

Support Bug Reports
1

Where does the bug appear (feature/product)?

Cursor IDE

Describe the Bug

Not able to send anymore prompts, goes into reconnecting and then showing this error.
I have tried logout login and even reinstalling cursor but still same error.

Steps to Reproduce

Not sure, just started seeing it.

Expected Behavior

My prompt should be accepted and I should get a response

Operating System

MacOS

Version Information

Version: 3.6.31
VS Code Extension API: 1.105.1
Commit: 81fcf2931d7687b4ff3f3017858d0c6dee7e2a60
Date: 2026-05-31T17:46:29.630Z
Layout: editor
Build Type: Stable
Release Track: Default
Electron: 39.8.1
Chromium: 142.0.7444.265
Node.js: 22.22.1
V8: 14.2.231.22-electron.0
xterm.js: 6.1.0-beta.220
OS: Darwin arm64 25.4.0

For AI issues: which model did you use?

Auto

For AI issues: add Request ID with privacy disabled

Request ID: 5d29aac8-df08-41e7-be4e-bab76c1c3a79

Does this stop you from using Cursor

Yes - Cursor is unusable

5

Hey, thanks for the report. From the logs, this request failed at the connection step and didn’t even reach the model. Requests a couple minutes earlier were working fine for you, so this looks like a transient connection issue, not a permanent block.

A few things to try in order:

  1. Start a new chat instead of the one where you hit the error. If a conversation gets into a bad state once, it often keeps failing, and a fresh chat usually fixes it.
  2. Run Cursor Settings > Network > Run Diagnostics. It’ll show if something is blocked at the network level like VPN, proxy, or a corporate firewall.
  3. If you’re on a corporate network, VPN, or Zscaler, try App Settings Cmd+Shift+, > search HTTP/2 > Disable HTTP/2, then restart Cursor.

If it still happens after that, please send a couple fresh Request IDs with Privacy Mode turned off, and let me know if starting a new chat helped. Then we can dig deeper.