After last update, stuck at "Waiting for extension host"

Jim_Lowe · January 22, 2026, 5:41am

Where does the bug appear (feature/product)?

Cursor IDE

Describe the Bug

Installed last update, evening of 1/21/26. Immediately on restart, every LLM interaction is met with “Waiting for extension host”, then an error message “Agent execution timed out - The agent execution provider did not respond within 16 seconds. This may indicate the extension host is not running or is unresponsive”. No model works in any mode (agent, ask, etc). I have tried disabling ALL extensions, makes no difference. Restart / reboot does not help. My internet access works fine.

Steps to Reproduce

After installing update, the bug happens every time

Operating System

Windows 10/11

Current Cursor Version (Menu → About Cursor → Copy)

Version: 2.4.14
VSCode version: 1.105.1

For AI issues: which model did you use?

All models including Gemini 3 Pro, GPT 5.2, Claude Opus 4.5

For AI issues: add Request ID with privacy disabled

Request ID: 34e27121-3060-40d3-86d7-631c4487556b
{“error”:“ERROR_CUSTOM”,“details”:{“title”:“Agent Execution Timed Out”,“detail”:“The agent execution provider did not respond within 16 seconds. This may indicate the extension host is not running or is unresponsive.”,“isRetryable”:false,“shouldShowImmediateError”:true,“additionalInfo”:{},“buttons”:[{“label”:“Reload Window”,“reloadWindow”:{}}],“planChoices”:}}
Agent Execution Timed Out [deadline_exceeded]
ConnectError: [deadline_exceeded] Agent Execution Timed Out
at vscode-file://vscode-app/c:/Users/Jim/AppData/Local/Programs/cursor/resources/app/out/vs/workbench/workbench.desktop.main.js:11431:8256
at async WHf.createExecInstance (vscode-file://vscode-app/c:/Users/Jim/AppData/Local/Programs/cursor/resources/app/out/vs/workbench/workbench.desktop.main.js:11431:6308)
at async YNg (vscode-file://vscode-app/c:/Users/Jim/AppData/Local/Programs/cursor/resources/app/out/vs/workbench/workbench.desktop.main.js:529:549377)
at async wW.execute (vscode-file://vscode-app/c:/Users/Jim/AppData/Local/Programs/cursor/resources/app/out/vs/workbench/workbench.desktop.main.js:9095:16084)
at async r1a.execute (vscode-file://vscode-app/c:/Users/Jim/AppData/Local/Programs/cursor/resources/app/out/vs/workbench/workbench.desktop.main.js:11431:1205)
at async gcb.execute (vscode-file://vscode-app/c:/Users/Jim/AppData/Local/Programs/cursor/resources/app/out/vs/workbench/workbench.desktop.main.js:34229:14275)
at async Wpc.buildComposerRequestContext (vscode-file://vscode-app/c:/Users/Jim/AppData/Local/Programs/cursor/resources/app/out/vs/workbench/workbench.desktop.main.js:34239:3573)
at async Wpc.streamFromAgentBackend (vscode-file://vscode-app/c:/Users/Jim/AppData/Local/Programs/cursor/resources/app/out/vs/workbench/workbench.desktop.main.js:34239:5171)
at async Wpc.getAgentStreamResponse (vscode-file://vscode-app/c:/Users/Jim/AppData/Local/Programs/cursor/resources/app/out/vs/workbench/workbench.desktop.main.js:34239:8436)
at async FTe.submitChatMaybeAbortCurrent (vscode-file://vscode-app/c:/Users/Jim/AppData/Local/Programs/cursor/resources/app/out/vs/workbench/workbench.desktop.main.js:9170:14575)
at async Oi (vscode-file://vscode-app/c:/Users/Jim/AppData/Local/Programs/cursor/resources/app/out/vs/workbench/workbench.desktop.main.js:32991:3808)

Does this stop you from using Cursor

Yes - Cursor is unusable

Skacke · January 22, 2026, 5:45am

I have the exact same problem!

patrickbu5 · January 22, 2026, 5:50am

I have been installing the early accesss updates, yesterday the 2.4.5 update was having issues with agent executed commands instantly being cancelled and shell commands failing to generate, right now its on 2.4.7 and that fixed all my issues, it’s prompting another update right now but I’d recommend turning on beta updates and seeing if that fixes it.

Jim_Lowe · January 22, 2026, 5:54am

Looks like the updates 2.4.13 and 2.4.14 are broken. I reinstalled v2.4.7 and it’s working again.

Alejandro_Lobos_Kuns · January 22, 2026, 8:44pm

Same issue in MacOS.

TimRally · January 22, 2026, 9:00pm

Same issue, and on Linux, couldn’t update to 2.4.21 because, for some reason, DNF was only seeing the arm64 version

Installed packages
Name            : cursor
Epoch           : 0
Version         : 2.4.14
Release         : 1769050262.el8
Architecture    : x86_64
Installed size  : 694.9 MiB
Source          : cursor-2.4.14-1769050262.el8.src.rpm
From repository : cursor
Summary         : The AI Code Editor.
URL             : https://cursor.com
License         : MIT
Description     : The AI Code Editor.
Vendor          : Cursor

Available packages
Name           : cursor
Epoch          : 0
Version        : 2.4.21
Release        : 1769102536.el8
Architecture   : aarch64
Download size  : 245.1 MiB
Installed size : 719.6 MiB
Source         : cursor-2.4.21-1769102536.el8.src.rpm
Repository     : cursor
Summary        : The AI Code Editor.
URL            : https://cursor.com
License        : MIT
Description    : The AI Code Editor.
Vendor         : Cursor

Name           : cursor
Epoch          : 0
Version        : 2.4.21
Release        : 1769102580.el8
Architecture   : x86_64
Download size  : 247.6 MiB
Installed size : 730.2 MiB
Source         : cursor-2.4.21-1769102580.el8.src.rpm
Repository     : cursor
Summary        : The AI Code Editor.
URL            : https://cursor.com
License        : MIT
Description    : The AI Code Editor.
Vendor         : Cursor

$  sudo dnf update cursor
Updating and loading repositories:
Repositories loaded.
Nothing to do.
$ sudo dnf install cursor
Updating and loading repositories:
Repositories loaded.
Package “cursor-2.4.14-1769050262.el8.x86_64” is already installed.

Nothing to do.

Running this helped:

sudo dnf clean all

sudo dnf check-update

Kasparex · January 24, 2026, 8:36am

This is annoying, how to fix this?!

MarceloDiani · January 26, 2026, 12:15pm

Same problem

MahdiNazemi-NVIDIA · January 28, 2026, 5:27am

Experiencing this in 2.4.22, and cannot use the early access channel on enterprise account.

FreeBagels · January 28, 2026, 5:53pm

Downgrading works.

Alexey_Svidentsov · January 28, 2026, 9:39pm

Downgrade didn’t work for me. Tried a lot of versions.

Only removing/renaming c:\Users\User\AppData\Roaming\Cursor\User\globalStorage\state.vscdb solve the issue.

You will need to loging to your cursor account again.

Miles_Low · January 28, 2026, 9:48pm

Still happens on the updated version

cndoughnut · January 29, 2026, 1:02am

I was able to get Cursor v2.4.22-1769469293 working again on Ubuntu 24.04.3 LTS by removing “~/.config/Cursor/” and starting Cursor again.

I was unable to roll back since the Cursor debian repo only seems to have the current version.

DanielG · February 1, 2026, 7:19pm

Experiencing the same issue on Mac with Cursor Version: 2.4.27

georgesb123 · February 1, 2026, 9:41pm

same, but I’m running Linux and the latest 2.4.27 version

Lexi · February 3, 2026, 11:50am

Same here

digitalmind · February 4, 2026, 9:39am

In that time are Rules and Skills processing. Even if you dont have specific skill you can have enabled Include third party. For me works this .. wait about 30-60s … do not RELOAD. Just close popup and after some time (you can check Rules and Skills are loaded) just retry you prompt.

Eccentricity · February 4, 2026, 7:57pm

I’m on 2.4.28 and having this problem (all LLM interactions hanging on “Waiting for extension host” and then erroring after 16 seconds).

It started after I updated yesterday. I typically install new updates as soon as they’re available, so I believe I was up to date before that. The first problem I noticed was that all my extensions were disabled on a remote host, and I was unable to reinstall them due to something like the extension server not being available. Some cursed nonsense from claude (manually creating a file which seemed to be missing) managed to fix the extension issue:
mkdir -p ~/.cursor-server/cli/servers/Stable-f3f5cec40024283013878b50c4f9be4002e0b580/server/extensions

But then I noticed the chat window issue and haven’t been able to resolve it. Reloading the window, quitting and restarting, and “Restart Extension Host” have all failed to help. Here’s an example copy of the request details:

Request ID: 37d5e4c1-9a20-40a6-9602-5d81602f7599
{“error”:“ERROR_CUSTOM”,“details”:{“title”:“Agent Execution Timed Out”,“detail”:“The agent execution provider did not respond within 16 seconds. This may indicate the extension host is not running or is unresponsive.”,“isRetryable”:false,“shouldShowImmediateError”:true,“additionalInfo”:{},“buttons”:[{“label”:“Reload Window”,“reloadWindow”:{}}],“planChoices”:}}
Agent Execution Timed Out [deadline_exceeded]
ConnectError: [deadline_exceeded] Agent Execution Timed Out
at vscode-file://vscode-app/Applications/Cursor.app/Contents/Resources/app/out/vs/workbench/workbench.desktop.main.js:11433:8255
at async wWf.createExecInstance (vscode-file://vscode-app/Applications/Cursor.app/Contents/Resources/app/out/vs/workbench/workbench.desktop.main.js:11433:6308)
at async EMg (vscode-file://vscode-app/Applications/Cursor.app/Contents/Resources/app/out/vs/workbench/workbench.desktop.main.js:529:551502)
at async CW.execute (vscode-file://vscode-app/Applications/Cursor.app/Contents/Resources/app/out/vs/workbench/workbench.desktop.main.js:9097:16084)
at async v1a.execute (vscode-file://vscode-app/Applications/Cursor.app/Contents/Resources/app/out/vs/workbench/workbench.desktop.main.js:11433:1205)
at async Hcb.execute (vscode-file://vscode-app/Applications/Cursor.app/Contents/Resources/app/out/vs/workbench/workbench.desktop.main.js:34237:14278)
at async ngc.buildComposerRequestContext (vscode-file://vscode-app/Applications/Cursor.app/Contents/Resources/app/out/vs/workbench/workbench.desktop.main.js:34247:3575)
at async ngc.streamFromAgentBackend (vscode-file://vscode-app/Applications/Cursor.app/Contents/Resources/app/out/vs/workbench/workbench.desktop.main.js:34247:5180)
at async ngc.getAgentStreamResponse (vscode-file://vscode-app/Applications/Cursor.app/Contents/Resources/app/out/vs/workbench/workbench.desktop.main.js:34247:8576)
at async OTe.submitChatMaybeAbortCurrent (vscode-file://vscode-app/Applications/Cursor.app/Contents/Resources/app/out/vs/workbench/workbench.desktop.main.js:9172:14624)
at async Xi (vscode-file://vscode-app/Applications/Cursor.app/Contents/Resources/app/out/vs/workbench/workbench.desktop.main.js:32996:3808)

Update: I reverted to cursor version 2.3.35, which is the most recent non-broken one I could find here ( Download · Cursor ), and no longer have this issue. So I’m pretty sure something is importantly broken about the most recent version.

camunity · February 10, 2026, 10:10am

this worked for me too thanks so much bro

Juelle · February 14, 2026, 10:00am

I am experiencing the exact same issue with versions cursor_2.4.36_amd64.deb and cursor_2.4.37_amd64.deb on Linux Mint 22.2. However, after downgrading, version cursor_2.3.35_amd64.deb is working again.

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