It gives me a warning：Unable to reach the model provider

Support Bug Reports
1

Where does the bug appear (feature/product)?

Cursor IDE

Describe the Bug

It gives me a warning【• Unable to reach the model provider
We’re having trouble connecting to the model provider. This might be temporary - please try again
in a moment.】 every time I use only 20% of the context. Opening a new window solves the problem, so all my previous conclusions are wasted and I need to start over.

Steps to Reproduce

You can just use the highest-level model to chat.

Operating System

MacOS

Current Cursor Version (Menu → About Cursor → Copy)

版本: 2.0.43
提交: 1.99.3
日期: 8e4da76ad196925accaa169efcae28c45454cce0
Electron: 2025-10-30T18:49:27.589Z
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

No - Cursor works, but with this issue

2

Hey, thanks for the report.

Let’s quickly check and gather data:

  • Update Cursor to the latest version: Downloads | Cursor Docs
  • New chat and disable HTTP/2: Settings - search “HTTP/2” - enable “Disable HTTP/2”, restart, test
  • Network diagnostics: Settings - Network - Run Diagnostics - send a screenshot
  • Request IDs from the chat menu at the time of the error - send the last 2-3
  • Logs: Help - Toggle Developer Tools - Console - errors when it fails
  • Clean profile: run in terminal
    cursor --user-data-dir="CursorData/TestProfile"
    test the same model there. If it works, it’s likely an extension or setting
  • If you use extensions, temporarily disable them: cursor --disable-extensions
  • If you have MCP servers, temporarily disable them and test

To avoid losing progress, before opening a new window duplicate the chat: Duplicate | Cursor Docs or export: Export | Cursor Docs

Please send:

  • Exact model and subscription/API key
  • Request IDs
  • Network diagnostics
  • Console screenshots/logs
  • Network/VPN/proxy, HTTP/2 status
  • Result in a clean profile and with extensions disabled

I’ll take a closer look once I have the data.

3

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