[BUG] claude-sonnet-5[1m] temporarily unavailable (timed out)

### Preflight Checklist

- [x] I have searched [existing issues](https://github.com/anthropics/claude-code/issues?q=is%3Aissue%20state%3Aopen%20label%3Abug) and this hasn't been reported yet
- [x] This is a single bug report (please file separate reports for different bugs)
- [x] I am using the latest version of Claude Code

### What's Wrong?

claude-sonnet-5[1m] temporarily unavailable (timed out)

### What Should Happen?

It should work without fail

### Error Messages/Logs

```shell

```

### Steps to Reproduce

Conncting claude code from windows terminal, but it timesout most of the time

### Claude Model

Sonnet (default)

### Is this a regression?

I don't know

### Last Working Version

_No response_

### Claude Code Version

2.1.233

### Platform

Anthropic API

### Operating System

Windows

### Terminal/Shell

Windows Terminal

### Additional Information

claude-sonnet-5[1m] temporarily unavailable (timed out)

No source file, test, or code entry point is identified. Start by reproducing the timeout in Windows Terminal with Claude Code 2.1.233 and the default Sonnet model, then investigate the relevant request path; done means the model request completes reliably instead of timing out.

索引モデルが issue の本文から書いたものです。