Public domain times out while service is running

Question

I am experiencing an issue with a Railway service where the application is running correctly, but the public HTTP domain is unreachable.

**Current behavior:**

* The service deploys successfully.
* The container starts without errors.
* The Node.js/Express server is listening on `0.0.0.0:8080`.
* MongoDB connects successfully.
* Logs confirm the server is running:  
```  
 Accounting Server running on port 8080  
 Connected to MongoDB successfully  
```
* However, accessing the public domain results in:  
```  
ERR_CONNECTION_TIMED_OUT  
```

**Expected behavior:**

* The service should be reachable via its public domain over HTTP.

**Additional details:**

* The application was working normally with the same deployment and configuration approximately one hour before the issue occurred.
* No code or configuration changes were made before the issue started.
* The public networking domain exists and is mapped to port 8080.
* The application correctly binds to `0.0.0.0` and the exposed port.
* The issue occurs even when accessing the domain directly in a browser (not only from the frontend app).