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Serv-U user is getting an error "SSH_MSG_DISCONNECT: client has requested a disconnect. Reason code: 11" randomly

This article describes an issue when a user is randomly getting an error during the file transfer.

First published date

11/24/2020 4:48 PM

Last published date

2/12/2025 3:18 AM

Overview

The "SSH_MSG_DISCONNECT: the client has requested a disconnect. Reason code: 11" is usually the client-initiated end of a session. It is a piece of logic implemented by the FTP client itself. Serv-U is following what FTP clients tells to do after successful authentication. Serv-U does not make any decisions on connecting/disconnecting.

Product section

Serv-U Managed File Transfer & Serv-U FTP Server

Cause

Possible network timeout on the user network side.

Resolution

Check the Serv-U logs and see if the user can establish a connection or list directories prior to getting the error. If so, then it means the user FTP client initiates a disconnection
The error code 11 signifies that the Client terminates the connection. The user is possibly executing an automated script when connecting to Serv-U. If yes, then most script contains Exit or Quit commands at the end of the Script after transferring the files.
Advise the customer to check their network side for any connection interruption when the issue happens

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