# Unable to use cursor. Cursor IDE Agents: "An unexpected error occurred" when sending a chat

**URL:** <https://forum.cursor.com/t/unable-to-use-cursor-cursor-ide-agents-an-unexpected-error-occurred-when-sending-a-chat/172569>\
**Category:** Bug Reports\
**Tags:** chat, cloud-agents\
**Created:** [September 22, 2026, 12:26am UTC](https://forum.cursor.com/t/unable-to-use-cursor-cursor-ide-agents-an-unexpected-error-occurred-when-sending-a-chat/172569 "2026-09-22T00:26:42Z")\
**Posts on this page:** 1\
**Showing post:** 7

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**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:** [September 22, 2026, 7:35am UTC](https://forum.cursor.com/t/unable-to-use-cursor-cursor-ide-agents-an-unexpected-error-occurred-when-sending-a-chat/172569/7 "2026-09-22T07:35:43Z")

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Hey @ashutoshmodgil, thanks for the report and for both Request IDs. That really helped.

I checked both entries. Neither request reached our servers. Each one waited about a minute for the component that runs agents locally inside the Cursor window on your PC. When that component didn’t start, Cursor stopped the send with “An unexpected error occurred”. Your account, model, and network are fine. Your cloud agent runs normally, so this isn’t an account setup issue.

This is a known issue we’re tracking on Windows, and I made a change on our side that should move you off the problematic path. To apply it:

1. Close Cursor.
2. Open Task Manager and end any remaining Cursor processes.
3. Reopen Cursor and the laavaya-divine folder.
4. Start a new chat and send “hi”.

If it still crashes, a fresh Windows machine is often missing a system component Cursor needs:

1. Install Microsoft Visual C++ 2015-2022 Redistributable (x64) from Microsoft. Search for vc\_redist.x64.
2. Make sure Cursor is installed in the default folder on drive C:.
3. Fully close Cursor (steps 1-2) and repeat step 4.

If it still doesn’t work, press `Ctrl+Shift+P`, run “Capture and Send Debugging Data” from the crashing window, accept the defaults, and attach the saved zip here. Privacy Mode is on, so Cursor will save the file locally instead of uploading it. Also, in the editor window (the “IDE” button in the top-right of the Agents Window), open View \> Output, pick “Cursor Agent Host” in the dropdown, and paste what you see there. Or tell me if that option isn’t in the list.

In the meantime, “Run in Cloud” works for you if you need to keep going. Let me know how it goes.

For reference, a similar case with a fix is here: [Cursor IDE Agent not working – Agent Host Bridge timeout](https://forum.cursor.com/t/cursor-ide-agent-not-working-agent-host-bridge-timeout/171920)

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