Agents Window always fails with ERROR_EXTENSION_HOST_TIMEOUT (IDE chat works)

Where does the bug appear (feature/product)?

Cursor IDE

Describe the Bug

Title: Agents Window always fails with ERROR_EXTENSION_HOST_TIMEOUT (IDE chat works)

I can see old chats in Agents Window, but continuing any of them fails every time with:

ERROR_EXTENSION_HOST_TIMEOUT
Agent Execution Timed Out [deadline_exceeded]
“The agent execution provider did not respond in time.”

Request IDs:

  • b3830867-230f-4aca-9a1f-2dc4688cee62
  • 5c04a4ef-a71e-45f2-be1e-44c14070af73
  • 75fced87-32cc-43ea-9455-7a7632fad2ef
  • e834cba9-3c89-4c5e-b577-ee5a9a9c1e48

What I already tried:

  • Reload Window
  • Developer: Reload Window
  • Remote-SSH: Kill Remote Server and Reload Window
  • reconnecting to the same host/folder

Context:

  • SSH host: josh-tailscale (100.102.21.33)
  • Project: /home/jdizz2/Joshmaster
  • IDE chat works; only Agents Window execution times out.
  • Recovered transcript files exist locally (97 files), so chat data is present.

Steps to Reproduce

see attached

Operating System

Windows 10/11

Version Information

Version: 3.4.20 (system setup)
VSCode Version: 1.105.1
Commit: 0cf8b06883f54e26bb4f0fb8647c9500ccb43310
Date: 2026-05-15T02:26:10.351Z
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: Windows_NT x64 10.0.26200

Does this stop you from using Cursor

No - Cursor works, but with this issue

Hey @Josh_Dittrich !

Please give 3.5 a try (downloads page) and let us know if you’re encountering the same issue. We’ve made some improvements here.