ftp.analog.com Could not connect to server

hello, ftp is not connect to server.

Status: Waiting to retry...
Status: Using proxy 192.168.2.10
Status: Connecting to 192.168.2.10:21...
Status: Connection established, waiting for welcome message...
Response: 220 FTP Service         
Command: USER adv728x@ftp.analog.com
Response: 530 Can't access ftp server: ftp.analog.com.
Error: Could not connect to server