[Bug]: about: net::ERR_CONNECTION_REFUSED at https://localhost:7119/

Version

1.57.0

Steps to reproduce

Example steps (replace with your own):

1. Clone my repo at https://github.com/simix-alessandrokantousian/TestWithPlaywright
2. run tests
3. You should see the error: net::ERR_CONNECTION_REFUSED at https://localhost:7119/

Expected behavior

Context

• Playwright Version: 1.57.0
• Operating System: Windows 11
• .NET 10
• Browser: Chromium, Firefox

Description

I'd like to understand why I get this error when I try to run Playwright, but when I have two Visual Studio windows open—one running the project and the other running Playwright—it works. Do I need to configure something in the project to be able to run the test with only one Visual Studio window open? Or is there some configuration that makes the project run before Playwright run?

Actual behavior

When I try to run Playwright happens net::ERR_CONNECTION_REFUSED at https://localhost:7119/

Additional context

No response

Environment

- Operating System: Windows 11
- CPU: AMD64 - Amd Ryzen 7000
- Browser: Chromium and Firefox
- .NET Version (TFM): [net10.0]
- Other info:

Start with the linked TestWithPlaywright repository and reproduce the failure by running its tests on Windows 11 with Playwright .NET 1.57.0. Inspect how the tested application is started and how the test run targets https://localhost:7119/. Done means the tests can start or reach the application without requiring a second Visual Studio window.