Status: Connecting to 192.168.1.72:2121...
Status: Connection established, waiting for welcome message...
Response: 220--- Welcome to FTP for Arduino ---
Response: 220--- By Jean-Michel Gallego ---
Response: 220 -- Version 2020-10-08 --
Status: Plain FTP is insecure. Please switch to FTP over TLS.
Command: USER arduino
Response: 530
Error: Could not connect to server
Status: Disconnected from server
Status: Connecting to 192.168.1.72:2121...
Status: Connection established, waiting for welcome message...
Status: Plain FTP is insecure. Please switch to FTP over TLS.
Status: Server does not support non-ASCII characters.
Status: Logged in
Status: Retrieving directory listing...
Status: Directory listing of "/" successful
Status: Connecting to 192.168.1.72:2121... Status: Connection established, waiting for welcome message... Response: 220--- Welcome to FTP for Arduino --- Response: 220--- By Jean-Michel Gallego --- Response: 220 -- Version 2020-10-08 -- Status: Plain FTP is insecure. Please switch to FTP over TLS. Command: USER arduino Response: 530 Error: Could not connect to server Status: Disconnected from server Status: Connecting to 192.168.1.72:2121... Status: Connection established, waiting for welcome message... Status: Plain FTP is insecure. Please switch to FTP over TLS. Status: Server does not support non-ASCII characters. Status: Logged in Status: Retrieving directory listing... Status: Directory listing of "/" successful
Originally posted by @gioreva in https://github.com/gallegojm/Arduino-Ftp-Server/issues/5#issuecomment-706279070
This welcome message. Same of above message. It is not working properly when authentication succeeded. It is working when auth fail.