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Strange exception when closing connection

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3.8k views
in .NET FTP by (560 points)
EnterpriseDT.Net.Ftp.FTPException: NOOP command successful. (code=200)
at EnterpriseDT.Net.Ftp.FTPControlSocket.ValidateReply(FTPReply reply, String[] expectedReplyCodes)
at EnterpriseDT.Net.Ftp.FTPClient.Quit()
at EnterpriseDT.Net.Ftp.Ssl.SSLFTPClient.Quit()
at EnterpriseDT.Net.Ftp.FTPConnection.Close(Boolean abruptClose)
at EnterpriseDT.Net.Ftp.ExFTPConnection.Close(Boolean abruptClose)
at EnterpriseDT.Net.Ftp.FTPConnection.Close()

What does it mean?

5 Answers

0 votes
by (162k points)
It means that commands have got out of sequence - probably because you are trying to wake up the server during long transfers? Looks like it doesn't work for your server.

EnterpriseDT.Net.Ftp.FTPException: NOOP command successful. (code=200)
at EnterpriseDT.Net.Ftp.FTPControlSocket.ValidateReply(FTPReply reply, String[] expectedReplyCodes)
at EnterpriseDT.Net.Ftp.FTPClient.Quit()
at EnterpriseDT.Net.Ftp.Ssl.SSLFTPClient.Quit()
at EnterpriseDT.Net.Ftp.FTPConnection.Close(Boolean abruptClose)
at EnterpriseDT.Net.Ftp.ExFTPConnection.Close(Boolean abruptClose)
at EnterpriseDT.Net.Ftp.FTPConnection.Close()

What does it mean?
0 votes
by (560 points)
FTP server is IIS. And why this exception occurs during close connection ?
0 votes
by (162k points)
Are you using FTPClient.ServerWakeupInterval?

FTP server is IIS. And why this exception occurs during close connection ?
0 votes
by (560 points)
No
I am using SecureFTPConnection class

Are you using FTPClient.ServerWakeupInterval?
0 votes
by (162k points)
Ok, ensure that KeepAliveTransfer = false.

If this doesn't solve the problem please post the log file (see the help).

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EnterpriseDT 2020
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