Cursor not able to connect to backend AI Services

Hey, thanks for the report. From the symptoms it looks like a known network/proxy issue. Please check:

  1. In Settings Cmd+, search for “HTTP/2” → enable “Disable HTTP/2” → restart Cursor. Accepted solution: Connection failed. If the problem persists, please check your internet connection or VPN
    Docs: Common Issues | Cursor Docs

If it didn’t help, please send:

  • The Request ID from the chat menu → Copy Request ID
  • A screenshot of the error and exact reproduction steps
  • macOS System Settings → Network → Firewall: confirm Cursor is allowed, re-allow if needed
  • Confirm that VPN/proxy/Zscaler are off and retry the test

Let me know if disabling HTTP/2 helped.