Trouble connecting to the model provider for all Anthropic and Open AI models

[A1n2T]

Where does the bug appear (feature/product)?

Cursor IDE

Describe the Bug

I’ve been experiencing recurring “Provider Error” issues since November 2025, making Cursor essentially unusable. The error message states: “We’re having trouble connecting to the model provider. This might be temporary - please try again in a moment.”

What I’ve already tried:

HTTP switch
Ran network diagnostics
Restarted Cursor multiple times
Renamed projects
Tried running Cursor with “blank” profile
Cleared cache and various files as suggested in forum threads
Searched and read through related forum threads with this issue
Contacted support (last attempt in January 2026 – no response received)

When does it occur:

All features affected: Agent mode, Plan, Chat…
All projects affected: The issue occurs across all my projects
No VPN: I’m not using any VPN
Single account: Using only one Cursor account (problem occured even within blank, test profile)

Pattern:
The issue is intermittent and unpredictable. Sometimes it works fine for a few days (like the last 3 days before the latest update), but after updating to version 2.4.28, it’s completely broken again. This has been the recurring pattern since November 2025.
Impact:
Cursor is currently completely unusable, and I’m paying $60/month for the Pro Plus plan. I’ve exhausted all troubleshooting options suggested in the community, but nothing provides a permanent solution.

Steps to Reproduce

1. Open Cursor IDE
2. Open any project
3. Try to use any AI feature (Chat, Plan, Agent mode) with Antropic or OpenAI models
4. Error appears immediately or after a few seconds of “reconnecting”
5. Sometimes works for a few days, then breaks again after update or out of nowhere

Screenshots / Screen Recordings

Operating System

MacOS

Version Information

Version: 2.4.28
VSCode Version: 1.105.1
Commit: f3f5cec40024283013878b50c4f9be4002e0b580
Date: 2026-02-03T00:56:18.293Z
Build Type: Stable
Release Track: Default
Electron: 39.2.7
Chromium: 142.0.7444.235
Node.js: 22.21.1
V8: 14.2.231.21-electron.0
OS: Darwin arm64 23.1.0

For AI issues: which model did you use?

Problem persists while using any Anthropic and OpenAI model

For AI issues: add Request ID with privacy disabled

Request ID: cee37c0a-4568-46b7-81d9-50ddf70014ca
{“error”:57,“details”:{“title”:“Provider Error”,“detail”:“We’re having trouble connecting to the model provider. This might be temporary - please try again in a moment.”,“isRetryable”:true,“additionalInfo”:{},“buttons”:,“planChoices”:},“isExpected”:true}
[resource_exhausted] Error
NTe: [resource_exhausted] Error
at tpf (vscode-file://vscode-app/Applications/Cursor.app/Contents/Resources/app/out/vs/workbench/workbench.desktop.main.js:9097:38348)
at Xmf (vscode-file://vscode-app/Applications/Cursor.app/Contents/Resources/app/out/vs/workbench/workbench.desktop.main.js:9097:37251)
at gpf (vscode-file://vscode-app/Applications/Cursor.app/Contents/Resources/app/out/vs/workbench/workbench.desktop.main.js:9098:5088)
at yva.run (vscode-file://vscode-app/Applications/Cursor.app/Contents/Resources/app/out/vs/workbench/workbench.desktop.main.js:9098:9098)
at async Wyt.runAgentLoop (vscode-file://vscode-app/Applications/Cursor.app/Contents/Resources/app/out/vs/workbench/workbench.desktop.main.js:34198:57104)
at async ngc.streamFromAgentBackend (vscode-file://vscode-app/Applications/Cursor.app/Contents/Resources/app/out/vs/workbench/workbench.desktop.main.js:34247:7835)
at async ngc.getAgentStreamResponse (vscode-file://vscode-app/Applications/Cursor.app/Contents/Resources/app/out/vs/workbench/workbench.desktop.main.js:34247:8576)
at async OTe.submitChatMaybeAbortCurrent (vscode-file://vscode-app/Applications/Cursor.app/Contents/Resources/app/out/vs/workbench/workbench.desktop.main.js:9172:14624)
at async Object.Xi [as onSubmit] (vscode-file://vscode-app/Applications/Cursor.app/Contents/Resources/app/out/vs/workbench/workbench.desktop.main.js:32996:3808)
at async vscode-file://vscode-app/Applications/Cursor.app/Contents/Resources/app/out/vs/workbench/workbench.desktop.main.js:32970:59730

Does this stop you from using Cursor

Yes - Cursor is unusable

[deanrie]

Hey, thanks for the detailed report.

I see you’re hitting the same issue (error 57 + resource_exhausted) that we’ve fixed over the last 2 days in a few cases. The main cause was problematic MCP servers.

Try this:

1. Cursor Settings > Tools & MCP

   • Check if you have any MCP servers connected
   • If yes (especially Perplexity MCP or custom servers), temporarily disable them

2. Cursor Settings > Models

   • Make sure Override OpenAI Base URL is turned off
   • If you have third-party API keys (OpenAI/Anthropic), temporarily disable them too (just toggle off)

3. Fully sign out and sign in (Cursor Settings > Sign Out, then Sign In)

4. Create a new test chat in a different project

This helped in identical cases:

• Cursor completely unusable - "Provider Error" on all models
• Connection problems with various models despite clean network diagnostics and having tried to switch to HTTP/1.1

Let me know if this helps. If not, I’ll ask for extra diagnostics, but I suspect it’s MCP.

[Pablo_Hortal]

Hi Dean,

Yeah, in my case, disabling the Perplexity MCP solved the issue.

Best,

[A1n2T]

Hey Dean, tried that. Now it works. Let’s hope it will last:)

I will get back if it persists after some time.

Best