# AI Chat Connection Error on all models and chats since update **URL:** \ **Category:** Bug Reports\ **Tags:** chat\ **Created:** [October 14, 2026, 1:14am UTC](https://forum.cursor.com/t/ai-chat-connection-error-on-all-models-and-chats-since-update/174653 "2026-10-14T01:14:44Z")\ **Posts on this page:** 2\ **Page:** 1
**Author:** ![Louis2](https://avatars.discourse-cdn.com/v4/letter/l/90db22/32.png) [@Louis2](https://forum.cursor.com/u/Louis2)\ **Post date:** [October 14, 2026, 1:14am UTC](https://forum.cursor.com/t/ai-chat-connection-error-on-all-models-and-chats-since-update/174653/1 "2026-10-14T01:14:44Z")
### Where does the bug appear (feature/product)? 3.24.18 ### Describe the Bug I did the update to Version 3.24.18 (system setup) on Windows 10 on 14th October 2026. Now none of my existing chats nor new chats work with any model… I just get ‘Connection failed. Please try again, or contact support if the issue persists.’. The error request states: ‘Request ID: 841e6e6f-b6d9-4489-96ad-2ff95f60f6c4 No resource accessor found for composer: baa95df1-8805-4318-8ad8-0201ef85b6b8 Error: No resource accessor found for composer: baa95df1-8805-4318-8ad8-0201ef85b6b8 at Lta.streamFromAgentBackend (vscode-file://vscode-app/c:/Program%20Files/cursor/resources/app/out/vs/workbench/workbench.desktop.main.js:18638:10115) at Lta.getAgentStreamResponse (vscode-file://vscode-app/c:/Program%20Files/cursor/resources/app/out/vs/workbench/workbench.desktop.main.js:18638:46636) at G1e.\_submitChatMaybeAbortCurrent (vscode-file://vscode-app/c:/Program%20Files/cursor/resources/app/out/vs/workbench/workbench.desktop.main.js:8860:2310) at async G1e.submitChatMaybeAbortCurrent (vscode-file://vscode-app/c:/Program%20Files/cursor/resources/app/out/vs/workbench/workbench.desktop.main.js:8855:75242)’.’ When I loaded up for the first time after the update my theme was reset from dark to light (default) - so not sure if settings were reset. I set the HTTP from HTTP2 to HTTP1.1 and tried HTTP1.0. Whilst this did resolve the network diagnostics to give a tick next to ‘Agent’ and ‘Chat’, the issue with Connection Error persisted for all chats and models. I restarted my PC and the issue persists. ### Steps to Reproduce Update Cursor to Version 3.24.18 (system setup) and then type in chat. ### Expected Behavior The chat won’t answer and it will come up with same connection error popup. ### Operating System Windows 10/11 ### Version Information 3.24.18 (system setup) ### For AI issues: which model did you use? All models tried. ### For AI issues: add Request ID with privacy disabled Request ID: 841e6e6f-b6d9-4489-96ad-2ff95f60f6c4 No resource accessor found for composer: baa95df1-8805-4318-8ad8-0201ef85b6b8 Error: No resource accessor found for composer: baa95df1-8805-4318-8ad8-0201ef85b6b8 at Lta.streamFromAgentBackend (vscode-file://vscode-app/c:/Program%20Files/cursor/resources/app/out/vs/workbench/workbench.desktop.main.js:18638:10115) at Lta.getAgentStreamResponse (vscode-file://vscode-app/c:/Program%20Files/cursor/resources/app/out/vs/workbench/workbench.desktop.main.js:18638:46636) at G1e.\_submitChatMaybeAbortCurrent (vscode-file://vscode-app/c:/Program%20Files/cursor/resources/app/out/vs/workbench/workbench.desktop.main.js:8860:2310) at async G1e.submitChatMaybeAbortCurrent (vscode-file://vscode-app/c:/Program%20Files/cursor/resources/app/out/vs/workbench/workbench.desktop.main.js:8855:75242) ### 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:** [October 14, 2026, 8:25am UTC](https://forum.cursor.com/t/ai-chat-connection-error-on-all-models-and-chats-since-update/174653/5 "2026-10-14T08:25:54Z")
Hey, thanks for the report and for sharing the full error text. That helped a lot. This is a known issue we’re tracking, and I’ve passed your case to the team. It isn’t a network issue, so switching HTTP versions wouldn’t help. You can safely switch back to HTTP/2. The chat crashes inside Cursor before the request is even sent, when the window has no project folder attached. This usually happens if the window or a saved workspace was restored without any folders inside. A profile reset during the 3.24 install could’ve caused that, which also matches the theme reset you noticed. To get chats working again: 1. In the editor window, open File \> Open Folder… and choose one of your project folders directly, not a saved workspace and not an item from Recent. 2. Once the folder shows up in Explorer, open a new chat and send a short message. If you also use the Agents window and it still crashes there: 1. Fully close Cursor, including from the system tray. 2. Press `Win+R`, enter `%APPDATA%\Cursor`, and press Enter. 3. Rename the `Workspaces` folder to `Workspaces.bak`. 4. Start Cursor, open your project folder through File \> Open Folder…, then try a new chat. Please let me know if the new chat worked after step 2 in the first list, and whether Explorer showed “NO FOLDER OPENED” before you opened the folder. Let me know how it goes.