FtpWebRequest Double Login?

I would like to consolidate my code so the 'Login' method is called and the FtpWebRequest would no longer be needed in the 'Upload' method. As is, the FTP server logs show 2 logins. Help!

 

public static FtpWebRequest request = null;

public static bool Login()
        {
            try
            {
                request = (FtpWebRequest) WebRequest.Create(new Uri(_uri));
                request.Credentials = new NetworkCredential(_userName, _password);
                request.Method = WebRequestMethods.Ftp.ListDirectory;
                request.UseBinary = _useBinary;
                request.EnableSsl = _enableSsl;
                request.KeepAlive = _keepAlive;
                request.UsePassive = _usePassive;
                request.Timeout = _timeOut;

                using (var response = (FtpWebResponse) request.GetResponse())
                {
                    statusMessage(response.StatusDescription);
                }
                
                return true;
            }
            catch (Exception)
            {
                return false;
            }
        }

        public static void Upload()
        {
            if (Login())
            {
                try
                {
                    request = (FtpWebRequest) WebRequest.Create(_uri + _fileName);
                    request.Method = WebRequestMethods.Ftp.UploadFile;
                    request.Credentials = new NetworkCredential(_userName, _password);

                    using (var sourceStream = new StreamReader(_filePath + _fileName))
                    {
                        byte[] fileContents = Encoding.UTF8.GetBytes(sourceStream.ReadToEnd()); 
                        request.ContentLength = fileContents.Length;

                        using (Stream requestStream = request.GetRequestStream())
                        {
                            requestStream.Write(fileContents, 0, fileContents.Length);
                        }
                    }

                    using (var response = (FtpWebResponse) request.GetResponse())
                    {
                        statusMessage(response.StatusDescription);
                    }
                }
                catch (Exception ex)
                {
                    statusMessage(ex.Message);
                }
            }
        }

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