我从FileZilla访问FTP服务器我得到这个错误。 但是，当我使用不同的ISP它的工作。 用户名和密码没有问题。 连接不同的ISP时使用相同的密码。 联系我的ISP他们说他们没有防火墙在FTP上。 也试过Winscp，但同样的问题。
Status: Resolving address of xxxxxx.org Status: Connecting to xx.xx.xx.xx:21... Status: Connection established, waiting for welcome message... Response: 220---------- Welcome to Pure-FTPd [privsep] [TLS] ---------- Response: 220-You are user number 4 of 500 allowed. Response: 220-Local time is now 06:15. Server port: 21. Response: 220-This is a private system - No anonymous login Response: 220 You will be disconnected after 3 minutes of inactivity. Command: USER xxxxxx Response: 331 User xxxxxx OK. Password required Command: PASS ******** Response: 530 Login authentication failed Error: Critical error: Could not connect to server