Recv failure: Connection was reset on localhost

### Expected Behavior

```
* Preparing request to http://localhost:8082/onboarding/v1/setup
* Current time is 2025-03-11T12:53:06.286Z
* Enable automatic URL encoding
* Using default HTTP version
* Enable SSL validation
* Trying 127.0.0.1:8082...
* Trying [::1]:8082...
* Connected to localhost (::1) port 8082 (#0)

> POST /onboarding/v1/setup HTTP/1.1
> Host: localhost:8082
> Content-Type: application/json
> User-Agent: insomnia/10.3.1
> x-request-id: af7c1fe6-d669-414e-b066-e9733f0de7a8
> Accept: */*
> Content-Length: 438

| {
| "Member": {
| "first_name": "John",
| "middle_names": "Michael",
| "last_name": "Doe",
| "has_signed_up": true,
| "is_password_reset_required": false,
| "email": "john.doe@example.com"
| },
| "Organization": {
| "organization_name": "Tech Innovations Inc.",
| "site_address": "123 Innovation Drive, Tech City, TC 12345",
| "organization_description": "A cutting-edge technology company focused on AI solutions"
| }
| }

* Recv failure: Connection was reset
* Closing connection 0
```

### Actual Behavior

request should work as it works in curl, bruno

### Reproduction Steps

_No response_

### Is there an existing issue for this?

- [x] I have searched the [issue tracker](https://www.github.com/Kong/insomnia/issues) for this problem.

### Which sync method do you use?

- [ ] Git sync.
- [ ] Insomnia Cloud sync.
- [ ] Local only

### Additional Information

_No response_

### Insomnia Version

10.3.1

### What operating system are you using?

Windows

### Operating System Version

Windows 11

### Installation method

download

### Last Known Working Insomnia version

_No response_

The issue provides no source file, test, or reproduction steps beyond an Insomnia request trace on Windows 11. Start by comparing the localhost POST behavior with curl and Bruno, then trace the request path for connection resets; done means the same request succeeds in Insomnia on the reported setup.

Written by the indexing model from the issue text.