ERROR: An established connection was aborted by the software

Question

Hello,

I have a strange issue. I have written a(.NET 3.5 C#) process around the edtFTP.net Pro 5.1 to handle all of my company's ftp needs. For the most part it is working great.

I've tracked down a few issues but there is one particular bug that is evading me.

I have a client whom I send 3 files weekly. 2 of the files always work, but one particular file(which is a brand new file every week) will not upload. It always fails with the error message of.

An established connection was aborted by the software in your host machine

If I rename this file it still has the same issue, the file does not exist on their remote server. And as all of our other transmissions work, including the two other files to this particular server I don't think it's a setup issue. Using Filezilla I can upload this file just fine.

I have the full log available if you would like me to email it to you.

Any help you could provide would be appreciated.

Thanks,

Albert

Answer 1

Please email the zipped log file to us.

A weird problem. Are you transferring in binary mode? Any clues in the server logs?

Answer 2

I think the error might be due to this:

"Protocol error: packet too long: 65588"

Try doing this:

SecureFTPConnection ftp = ...
ftp.SSHMaxPacketSize = 32767;

Answer 3

Thanks Bruce I'll give that a shot.