I encountered an issue where I cannot get any responses in Cursor’s chat window. When I opened the network diagnostics, I noticed that the API and Chat sections kept loading, as shown in the screenshot. After switching the HTTP protocol to HTTP/1.1, the API and Chat sections worked normally, but the chat conversations still did not return any responses.
There’s also a strange problem: when I uninstall Cursor and delete the AppData\Roaming\Cursor directory, then restart my computer and reinstall Cursor, everything works fine. However, after opening a project in Cursor and then restarting Cursor, the issue appears again.
Hey, thanks for the report. There might have been changes in your network from the provider’s side, or you switched to a VPN, or turned it off. Also, could you try adding Cloudflare DNS in your network system settings? Add the address 8.8.8.8 or 1.1.1.1. Some users have reported that this can fix the issue.
I manually set the DNS IP address to 8.8.8.8 and restarted my computer, but the issue still persists.
Here are two additional pieces of information:
When I open a new Cursor app window without opening any project, there is a certain chance that the chat works normally. But once I open a project or restart Cursor, it stops working again.
In HTTP/2.0 mode, the chat never gets a response. In HTTP/1.1 mode, after a long time it eventually shows: “Connection failed. If the problem persists, please check your internet connection or VPN.”
I uninstalled Cursor and deleted all related directories, then reinstalled it. The chat worked normally at first, but by the third conversation, it stopped responding again.
It seems like the chat issue could be related to cached data in the AppData directory. Some users have reported that clearing this folder temporarily resolves the problem, but it reappears after reopening a project.
Hey, thanks for the report. Could you tell me which model you’re using? Also, let me know which Cursor version you’re on. It would also help if you could share the request ID. To do that, please disable Privacy Mode.
I’m using Auto mode;
The Cursor version is 1.6.27.
I’m a business plan user, and by default, Cursor runs in privacy mode. However, I’m still able to copy the request ID, and I’m not sure whether it’s valid.
Could you let me know if you’re using any MCP servers? Also, could you try turning on a VPN? As I understand it, this only happens in Auto mode. Do other models work well?
