An error response was returned to the client. (user = aa....aa, client = bb....bb)

aa....aa: User name

• If the error occurs before the user logs in: <null>

bb....bb: IP address of the client

Description

An error response was returned to the client.

(S)

The file transmission processing ends.

(O)

Review and, if necessary, revise the following items:

• FTP server status
• Network status

Also, take appropriate action according to the messages displayed before this message.