net::ERR_CONNECTION_REFUSED Error in .NET Angular App - How to Resolve? [duplicate]

enter image description hereI'm encountering a net::ERR_CONNECTION_REFUSED error while working with my Angular application integrated with a .NET backend. The issue occurs when I try to access certain resources or endpoints. Here's a detailed description of the problem:

Application: Angular frontend (VS code) with a .NET backend (Web API) Environment: Local development environment Browser: Google Chrome Error Message: Failed to load resource: net::ERR_CONNECTION_REFUSED

I have tried to add Cros in program.cs page CORS Settings: Ensured that CORS is correctly configured in the .NET backend to allow requests from the Angular frontend.

Changed the port 4200 to 5200 Restarted the app

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