# Unable to reach Claude's models

**URL:** <https://forum.cursor.com/t/unable-to-reach-claudes-models/140759>\
**Category:** Bug Reports\
**Created:** [November 3, 2025, 12:03pm UTC](https://forum.cursor.com/t/unable-to-reach-claudes-models/140759 "2025-11-03T12:03:31Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Rom\_12](https://avatars.discourse-cdn.com/v4/letter/r/ed655f/32.png) [@Rom\_12](https://forum.cursor.com/u/Rom_12)\
**Post date:** [November 3, 2025, 12:03pm UTC](https://forum.cursor.com/t/unable-to-reach-claudes-models/140759/1 "2025-11-03T12:03:31Z")

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### Where does the bug appear (feature/product)?

Cursor IDE

### Describe the Bug

I keep getting Unable to reach the model provider when trying to connect to Claude. I’ve tried updating the app, closing and re-opening it, disabling my mcp tools… nothing works. Please can someone help me find a solution? This has been ongoing for one week now, with 0 success of reaching Claude in the last week.

### Steps to Reproduce

Select Clause Sonnet 4.5 or Opus 4.1 and I get the message “Unable to reach model provider”

### Expected Behavior

To be able to use Claude’s models in Cursor

### Operating System

MacOS

### Current Cursor Version (Menu → About Cursor → Copy)

Version: 2.0.43 (Universal)  
VSCode Version: 1.99.3  
Commit: 8e4da76ad196925accaa169efcae28c45454cce0  
Date: 2025-10-30T18:49:27.589Z (3 days ago)  
Electron: 34.5.8  
Chromium: 132.0.6834.210  
Node.js: 20.19.1  
V8: 13.2.152.41-electron.0  
OS: Darwin arm64 24.6.0

### For AI issues: which model did you use?

sonnet 4

### Does this stop you from using Cursor

No - Cursor works, but with this issue

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<div class="post-metadata">

**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:** [November 3, 2025, 1:37pm UTC](https://forum.cursor.com/t/unable-to-reach-claudes-models/140759/2 "2025-11-03T13:37:10Z")

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Hey, thanks for the report. Let’s run some diagnostics to find the cause:

1. Network diagnostics:

- Open Cursor → Settings → Network → Run Diagnostics
- Share the results here

1. Disable `HTTP/2`:

- Press CMD + , to open Settings
- Search “HTTP/2”
- Enable “Disable HTTP/2”
- Restart Cursor and test again

1. Extra details:

- Are you on a VPN or corporate network?
- Any firewall/antivirus running?
- Does this happen in a brand‑new chat or only existing ones?
- Can you share a request ID? (Chat menu → Copy Request ID)

Send the diagnostics and we’ll continue the investigation.

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**Author:** ![system](https://sea3.discourse-cdn.com/cursor1/user_avatar/forum.cursor.com/system/32/99069_2.png) [@system](https://forum.cursor.com/u/system)\
**Post date:** [November 25, 2025, 1:37pm UTC](https://forum.cursor.com/t/unable-to-reach-claudes-models/140759/3 "2025-11-25T13:37:58Z")

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Closed on November 25, 2025, 1:37pm UTC

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