Connection failures in Agent after 0.47

[SiddharthPant]

After upgrading to v0.47, Cursor Agent has stopped working for me. It just hangs on “Generating…” and after 5 mins shows connection failure. I have tried everything like cleared caches, cleared editor history, reinstalled, restarted Mac, tried different internet connections(my home 1Gbps fiber and other one Mobile 5G). Yet it simply doesn’t work.
The only time things work for me is if I choose the Ask option and Deepseek R1 model. Even there choosing the Claude models I face the same issue, sometimes model gives back the response and then fail mid way or else like above gets stuck at generating.
My request quota is still at 44/500 so its not like I have filled my requests quota.

All in all Cursor v0.47 is pretty useless for me since about yesterday(15/March/2025) when I ugpraded.

Here are the details:
Failed request ID: 441bbc42-a893-4a81-9434-da3b3d768fe8

Version: 0.47.5 (Universal)
VSCode Version: 1.96.2
Commit: 53d6da1322f934a1058e7569ee0847b24879d180
Date: 2025-03-14T21:40:35.200Z (1 day ago)
Electron: 32.2.6
Chromium: 128.0.6613.186
Node.js: 20.18.1
V8: 12.8.374.38-electron.0
OS: Darwin arm64 24.3.0

[danperks]

Hey, this does seem like a networking issue, from the ECONNRESET errors we can see in the terminal.

If you are still seeing this, can you try to disable HTTP/2 in your settings:

Cursor – Common Issues

[lukaswelinder]

Having the same issue with the latest 1.47. Disabling HTTP/2 doesn’t resolve it.

It appeared to work with MCP tools disabled, but when enabled, I’m consistently getting connection errors in agent mode.

[lukaswelinder]

I’ve tried all agent enabled models in latest 0.46 and 0.47 releases (with and without HTTP/2 disabled) and found the following:

• If any MCP tools are enabled, there is a connection error
• If MCP tools are disabled, it works, but gives bizarre/truncated responses

Pretty sure there is something broken on Cursor’s side.

[pemcode]

I have the same problem. 0.45 works from inside corporate network, but 0.46 and 0.47 do not work. Something with the networking stuff must have changed.

When I try to use 0.47 chat “hello world”, it says “Generating” then cancels. It doesn’t print an error messsage.

[pemcode]

This seemed to fix it actually - checking two http setting boxes

Disable Http2

Http: Fetch Additional Support

[SiddharthPant]

I didn’t need to do anything. I just installed latest update that was finally released this week. After that I had no issues. So whatever was broken, got fixed after the updates.