Where does the bug appear (feature/product)? Cursor IDE Describe the Bug Cursor completely unusable - “Provider Error” on all models, all networks, even with my own API key. Every chat message fails with: “We’re having trouble connecting to the model provider.” What I’ve tried (all unsuccessful): …

Hi Dean, thank you very much for your response. It is very much appreciated :slight_smile: It turns out that the problem was on the Perplexity MCP (weird!). Once I disabled that, everything started working again.

Hey, thanks for the report. I can see the issue started on Feb 5. That same day there was an Anthropic-side service incident that lasted about 6 hours and was resolved. It’s possible the issue is already gone, can you try again? If the issue is still happening, error 57 plus resource_exhausted is …

Cursor completely unusable - "Provider Error" on all models

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Pablo_Hortal (Pablo Hortal) February 5, 2026, 5:47pm 4

Hi Dean, thank you very much for your response. It is very much appreciated

It turns out that the problem was on the Perplexity MCP (weird!). Once I disabled that, everything started working again.

Connection problems with various models despite clean network diagnostics and having tried to switch to HTTP/1.1

Topic		Replies	Views
Again We're having trouble connecting to the model provider. This might be temporary - please try again in a moment Bug Reports openai , composer	8	650	February 22, 2026
Connection problems with various models despite clean network diagnostics and having tried to switch to HTTP/1.1 Bug Reports chat	3	153	February 6, 2026
Trouble connecting to the model provider for all Anthropic and Open AI models Bug Reports openai , anthropic	3	350	February 6, 2026
OpenAI Models not working in IDE or CLI with "reconnecting" and "resource_exhausted" Bug Reports chat , cli , openai	5	208	February 13, 2026
Infinite Provider Error Bug Reports performance , anthropic	2	77	February 5, 2026

Cursor completely unusable - "Provider Error" on all models

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