Const localFile As String = "C:\test.txt"
    Const remoteFile As String = "/ordner/test/test.txt"
    Const host As String = "ftp://888.888.0.888"
    Const username As String = "hanswurst"
    Const password As String = "banane"

 Dim URI As String = host & remoteFile
        Dim ftp As System.Net.FtpWebRequest = _
            CType(FtpWebRequest.Create(URI), FtpWebRequest)
 
        ftp.Credentials = New _
            System.Net.NetworkCredential(username, password)
 
        ftp.KeepAlive = False
        ftp.UseBinary = True
        ftp.Method = System.Net.WebRequestMethods.Ftp.DownloadFile
        Using response As System.Net.FtpWebResponse = _
              CType(ftp.GetResponse, System.Net.FtpWebResponse)
            Using responseStream As IO.Stream = response.GetResponseStream
                'loop to read & write to file
 
                Using fs As New IO.FileStream(localFile, IO.FileMode.Create)
                    Dim buffer(2047) As Byte
                    Dim read As Integer = 0
                    Do
                        read = responseStream.Read(buffer, 0, buffer.Length)
                        fs.Write(buffer, 0, read)
                    Loop Until read = 0 'see Note(1)
 
                    responseStream.Close()
                    fs.Flush()
                    fs.Close()
                End Using
                responseStream.Close()
            End Using
            response.Close()
        End Using

Der Remoteserver hat einen Fehler zurückgegeben: (530) Nicht angemeldet.