C# FTP Download Script Fails

Question

try
//FtpWebRequest request = (FtpWebRequest)WebRequest.Create(@"//ftp.london.com/gem/");
//request.Proxy = null;
FileStream outputStream = new FileStream(@"C:\Downloads\Files\" + FTPFile, FileMode.Create);
reqFTP = (FtpWebRequest)FtpWebRequest.Create("ftp://username:[email protected]/" + "gem" + FTPFile);
reqFTP.Method = WebRequestMethods.Ftp.DownloadFile;
reqFTP.UseBinary = true;
reqFTP.Credentials = new NetworkCredential(FTPSettings.UserID, FTPSettings.Password);
FtpWebResponse response = (FtpWebResponse)reqFTP.GetResponse();
ftpStream = response.GetResponseStream();
long cl = response.ContentLength;
int bufferSize = 2048;
int readCount;
byte[] buffer = new byte[bufferSize];
readCount = ftpStream.Read(buffer, 0, bufferSize);
while (readCount > 0)
outputStream.Write(buffer, 0, readCount);
readCount = ftpStream.Read(buffer, 0, bufferSize);
ftpStream.Close();
outputStream.Close();
//response.Close();
This is a little hard to troubleshoot, but I determined that the code fails on this line:
reqFTP.Credentials = new NetworkCredential(FTPSettings.UserID, FTPSettings.Password);
Everything works fine one several VMs, but when I just tried this exact same script on a new VM, it does NOT work.  I don't know if there is some setting that I need to check, or some kind of configuration, or what.  Again, this works on several
of my VMs, and it's been working fine for over a year.  Just today it failed on a new VM, and I have no idea why.
Here is the error message that I get.
Any idea what's wrong, anyone?
Knowledge is the only thing that I can give you, and still retain, and we are both better off for it.

Answer 1

The user credentials you're using are not valid for the FTP server.  Verify the credentials and try again.
Michael Taylor
http://blogs.msmvps.com/p3net