Hello,
I'm using FtpWebRequest to download files from FTP server.
For small files <= 20MB everything is going well, but if the file is 100-200MB, it fails..
it downloads like 50-70MB and then application hangs... after some time it shows popup window with this information:
Unable to read data from the transport connection: A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond.
the setting sor FtpWebRequest look like this:
Code:
                    partRequest = FtpWebRequest.Create(ftpUrl) as FtpWebRequest;
                    partRequest.Method = WebRequestMethods.Ftp.DownloadFile;
                    partRequest.Credentials = new NetworkCredential(FtpUsername, FtpPassword);
                    partRequest.UsePassive = true;
                    partRequest.UseBinary = true;
                    partRequest.KeepAlive = false; // close the connection when done
                    partRequest.Timeout = Int32.MaxValue; //this line didn't help :(

                    FtpWebResponse partResponse = partRequest.GetResponse() as FtpWebResponse;
                    Stream partReader = partResponse.GetResponseStream();
                    byte[] buffer = new byte[1024];
                    FileInfo fi = new FileInfo(path);
                    FileStream memStream = fi.Create();
                    while (true)
                    {
                        Application.DoEvents(); 

                        // Try to read the data
                        int bytesRead = partReader.Read(buffer, 0, buffer.Length);
                        if (bytesRead == 0)
                              break;

                        memStream.Write(buffer, 0, bytesRead);
                    }
Do you have any suggestions? What can be a reason why it crashes with bigger files..

Maybe you know some library which is tested and works with large files (~2GB)

Hope somebody know the solution.. i spent 2 days on looking for it in the internet with no result.

Cheers
Ka-