如题，我想上FTP下载1到4季，才下了几集，结果就连不上了。
WinSock 2.0 -- OpenSSL 0.9.8i 15 Sep 2008
[右] 正在连接到 lyokocn.sharkserve.com -> DNS=lyokocn.sharkserve.com IP=184.82.151.202 PORT=21
[右] 已连接到 lyokocn.sharkserve.com
[右] 220---------- Welcome to Pure-FTPd [privsep] [TLS] ----------
[右] 220-You are user number 2 of 50 allowed.
[右] 220-Local time is now 23:33. Server port: 21.
[右] 220-This is a private system - No anonymous login
[右] 220 You will be disconnected after 15 minutes of inactivity.
[右] USER
lyokocner@lyokocn.sharkserve.com
[右] 331 User
lyokocner@lyokocn.sharkserve.com OK. Password required
[右] PASS (隐藏)
[右] 530 Login authentication failed
[右] 连接失败
[右] 正在延迟 120 秒, 之后将尝试第 1 次重新连接
请问是怎么一回事？