# Cursor agent often have network issue **URL:** \ **Category:** Bug Reports\ **Created:** [March 6, 2026, 6:59am UTC](https://forum.cursor.com/t/cursor-agent-often-have-network-issue/153805 "2026-03-06T06:59:28Z")\ **Posts on this page:** 7\ **Page:** 1
**Author:** ![habaohaba](https://sea3.discourse-cdn.com/cursor1/user_avatar/forum.cursor.com/habaohaba/32/65682_2.png) [@habaohaba](https://forum.cursor.com/u/habaohaba)\ **Post date:** [March 6, 2026, 6:59am UTC](https://forum.cursor.com/t/cursor-agent-often-have-network-issue/153805/1 "2026-03-06T06:59:28Z")
### Where does the bug appear (feature/product)? Cursor IDE ### Describe the Bug When i use agent in cursor, does it need extension to respond? Why I not directly use cc in terminal since it is more network reliable. ### Steps to Reproduce just use agent ### Expected Behavior repond ### Operating System Linux ### Version Information Version: 2.6.12 (Universal) VSCode Version: 1.105.1 Commit: 1917e900a0c4b0111dc7975777cfff60853059d0 Date: 2026-03-04T21:41:18.914Z Build Type: Stable Release Track: Default Electron: 39.6.0 Chromium: 142.0.7444.265 Node.js: 22.22.0 V8: 14.2.231.22-electron.0 OS: Darwin arm64 25.3.0 ### Does this stop you from using Cursor Yes - Cursor is unusable ---
**Author:** ![deanrie](https://sea3.discourse-cdn.com/cursor1/user_avatar/forum.cursor.com/deanrie/32/1263_2.png) [@deanrie](https://forum.cursor.com/u/deanrie)\ **Post date:** [March 6, 2026, 7:36am UTC](https://forum.cursor.com/t/cursor-agent-often-have-network-issue/153805/3 "2026-03-06T07:36:46Z")
Hey, the agent doesn’t require any extensions to work. It should work out of the box. To help figure out what’s going wrong with the network, a few things to check: - Run the network diagnostics: Cursor Settings \> Network \> Run Diagnostics and share the results here. - What exact error do you see when using the agent? “Taking longer than expected”, “Connection lost”, or something else? A screenshot would help. - Try disabling HTTP/2. Add this to your `settings.json` (`Cmd+Shift+P` \> Preferences: Open User Settings (JSON)): ```json "cursor.general.disableHttp2": true ``` Then restart Cursor. - Are you on a VPN, proxy, or corporate network? Let me know how it goes. ---
**Author:** ![habaohaba](https://sea3.discourse-cdn.com/cursor1/user_avatar/forum.cursor.com/habaohaba/32/65682_2.png) [@habaohaba](https://forum.cursor.com/u/habaohaba)\ **Post date:** [March 6, 2026, 8:32am UTC](https://forum.cursor.com/t/cursor-agent-often-have-network-issue/153805/4 "2026-03-06T08:32:25Z")
It say waiting for extension host. I don’t know what does this mean. ---
**Author:** ![deanrie](https://sea3.discourse-cdn.com/cursor1/user_avatar/forum.cursor.com/deanrie/32/1263_2.png) [@deanrie](https://forum.cursor.com/u/deanrie)\ **Post date:** [March 6, 2026, 8:43am UTC](https://forum.cursor.com/t/cursor-agent-often-have-network-issue/153805/5 "2026-03-06T08:43:04Z")
“Waiting for extension host” is a different issue from network problems. The agent depends on the extension host process, and if it hangs or crashes, you’ll see this error. A few things to try: 1. Disable all extensions and test the agent: run `cursor --disable-extensions` in Terminal, then try using the agent. 2. Check if a specific project triggers it: open a new, empty folder and test there. If it works fine, the issue might be project-specific. 3. Open the Process Explorer (`Cmd+Shift+P` \> `Developer: Open Process Explorer`) and check if `extensionHost` is using unusually high CPU or memory. Also, your OS info shows macOS (Darwin arm64), not Linux. Just want to confirm you’re running locally and not through any remote connection (SSH, WSL, etc.)? This is a known issue the team is tracking. Let me know what you find from the steps above. ---
**Author:** ![habaohaba](https://sea3.discourse-cdn.com/cursor1/user_avatar/forum.cursor.com/habaohaba/32/65682_2.png) [@habaohaba](https://forum.cursor.com/u/habaohaba)\ **Post date:** [March 6, 2026, 9:03am UTC](https://forum.cursor.com/t/cursor-agent-often-have-network-issue/153805/6 "2026-03-06T09:03:00Z")
I ssh connect to a linxu server. ---
**Author:** ![deanrie](https://sea3.discourse-cdn.com/cursor1/user_avatar/forum.cursor.com/deanrie/32/1263_2.png) [@deanrie](https://forum.cursor.com/u/deanrie)\ **Post date:** [March 13, 2026, 3:20pm UTC](https://forum.cursor.com/t/cursor-agent-often-have-network-issue/153805/7 "2026-03-13T15:20:06Z")
Got it. SSHing into a Linux server explains the “Waiting for extension host” issue. This is a known problem that happens more often over SSH, especially with larger workspaces. A few things to try: 1. Open a smaller subfolder instead of the root of a large project. This is usually the best workaround since the extension host has less to scan on startup. 2. Add a `.cursorignore` file to exclude heavy folders Cursor doesn’t need to index, like build outputs, `node_modules`, or large data directories. It works like `.gitignore`. 3. Test with extensions disabled. Run `cursor --disable-extensions` and see if the agent works. If it does, an extension is likely causing the extension host to hang. You can then turn extensions back on one by one to find which one. 4. Check Process Explorer. Open `Cmd+Shift+P`, then run `Developer: Open Process Explorer`. See if `extensionHost` is using a lot of CPU or memory. The team is aware of this pattern with SSH connections. Can you share how big the remote workspace is, like the rough file count or total size? That would help narrow it down. ---
**Author:** ![system](https://sea3.discourse-cdn.com/cursor1/user_avatar/forum.cursor.com/system/32/99069_2.png) [@system](https://forum.cursor.com/u/system)\ **Post date:** [April 4, 2026, 3:20pm UTC](https://forum.cursor.com/t/cursor-agent-often-have-network-issue/153805/8 "2026-04-04T15:20:44Z")
Closed on April 4, 2026, 3:20pm UTC This topic was automatically closed 22 days after the last reply. New replies are no longer allowed.