I am seeing Reconnecting ... in cursor IDE chats

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1

I am not using a VPN, and I checked System Settings → Wi-Fi → Details → Proxies — everything is OFF.

From Cursor Network Diagnostics:

  • DNS: Success

  • HTTP/2: Success

  • SSL: Success

  • API: Success

  • Marketplace: Success

  • Authentication: Success

  • Chat: Failed

  • Agent: Failed

Main errors:

  • Chat: Streaming responses are being buffered by a proxy in your network environment

  • Agent: [unavailable] PING timed out

I also noticed ping responses are sometimes extremely delayed, including one around 148 seconds.

It seems normal connectivity checks pass, but streaming for Chat/Agent is unstable or blocked.

Has anyone seen this on macOS without an active VPN or proxy? What should I try next?

If you want, add this at the end as a separate short line:

Note: Earlier diagnostics also showed: Bidirectional streaming is not supported by the http2 proxy in your network environment

3

It should be due to a version upgrade. I downgraded to version 2.6 and it worked fine

4

What is the solution of this , i am on :slight_smile:
Version: 3.0.16
VSCode Version: 1.105.1
Commit: 475871d112608994deb2e3065dfb7c6b0baa0c50
Date: 2026-04-09T05:33:51.767Z
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
OS: Darwin arm64 25.3.0

5

Hey, it looks like there’s a transparent proxy somewhere on the network, even if the macOS proxy setting is turned off. Diagnostics literally says Streaming responses are being buffered by a proxy, so it could be at the router or ISP level.

Try disabling HTTP/2:

  • Open App Settings Cmd+,
  • Find HTTP/2
  • Turn on Disable HTTP/2
  • Fully restart Cursor

If that doesn’t help, add this manually to settings.json:

"cursor.general.disableHttp2": true

A few questions so we can narrow it down:

  • Is this a home network or a work corporate network?
  • Do you have anything on the router like Pi-hole, AdGuard, or a built-in firewall?
  • If you try a mobile hotspot, does chat work?

Let me know how it goes.