"TLS session of data connection has not resumed or the session does not match the control connection" 错误

Question

前运行代码。但现在他犯了一个错误。 错误是 "TLS does not match the control connection"。 client.Upload ().
期间出现错误 我正在用c#开发。在 Filezilla 应用程序中，相同的过程可以毫无问题地运行。上传时出错。我该怎么办？

using (Ftp client = new Ftp())
            {
                client.ServerCertificateValidate += ValidateCertificate;
                client.ConnectSSL(Host);
                client.Login(Username, Password); 
                client.Upload(dosyaAdi, LocalDestinationFilename);
              }

Answer 1

我进入了2121端口。client.connect（主机，2121）；成形。问题解决了。他犯这个错误是因为端口。

using (Ftp client = new Ftp())
            {
                client.ServerCertificateValidate += ValidateCertificate;
                client.Connect(Host,2121);
                client.Login(Username, Password); 
                client.Upload(dosyaAdi, LocalDestinationFilename);
              }