I am developing a .NET Framework 4.0 console application in VB.NET. I’m trying to connect to an API using HttpWebRequest, but I keep encountering the following error:

System.Net.WebException: 'The underlying connection was closed: An unexpected error occurred on a send.'
IOException: Authentication failed because the remote party has closed the transport stream.

Code:

Imports System.Net
Imports System.Net.Http
Imports System.Net.Http.Headers

Module Module1

    Sub Main()
        ' Set the API URL
        Dim apiUrl As String = "your_api_url_here"

        Console.WriteLine(apiUrl)

        Dim request As HttpWebRequest = CType(WebRequest.Create(apiUrl), HttpWebRequest)

        Dim response As HttpWebResponse = request.GetResponse()
        Console.WriteLine(response.StatusCode)
        Console.ReadKey()
    End Sub

End Module