Deepseek trouble connecting

Support Bug Reports
1

Where does the bug appear (feature/product)?

Cursor IDE

Describe the Bug

Recently, when attempting to send a message to Deepsek-v3.1 in chat mode, an error occurs:
We’re having trouble connecting to the model provider. This might be temporary - please try again in a moment.
(Request ID: b9d69c1a-3443-44ab-90f9-00180f47569c)

In editing mode, Deepsek works in the code window, but not in the chat window. Other free models work.

Steps to Reproduce

Open the chat. Select the Ask mode. Write your request and send it.

Operating System

Windows 10/11

Current Cursor Version (Menu → About Cursor → Copy)

Version: 1.4.5 (user setup)
Fix: 1.99.3
Date: af58d92614edb1f72bdd756615d131bf8dfa5290
Electron: 2025-08-13T02:08:56.371Z
ElectronBuildId: 34.5.8
Chromium: undefined
Node.js: 132.0.6834.210
V8: 20.19.1
OS: 13.2.152.41-electron.0

Does this stop you from using Cursor

Yes - Cursor is unusable

2

Thanks for reporting this. Please try these steps:

• Update to the latest version - You’re on version 1.4.5, but the current version is 1.5.5. Please update and retest.
• Run network diagnostics - Go to Cursor Settings → Network → Run Diagnostics to check your connection to Cursor’s servers.

If you’re on a corporate network or VPN, try disabling HTTP/2 in app settings (Cmd/Ctrl + , → search “HTTP/2” → enable “Disable HTTP/2”). Cursor – Common Issues

Please let us know if this still happens after these steps.

3

The cursor update solved the problem. Additionally, I did nothing.

4

Hey, yes, the issue was on the provider’s side and now everything should work fine.

5

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