问将FTP连接到服务器时，"MLSD“命令出错

EN

Status: Resolving address of si****.co (edited)
Status: Connecting to 74.208.***.***:21... (edited)
Status: Connection established, waiting for welcome message...
Response:   220 ProFTPD 1.3.3e Server (ProFTPD) [74.208.***.***] (edited)
Command:    USER si***** (edited)
Response:   331 Password required for si*****
Command:    PASS ********
Response:   230 User si***** logged in
Command:    SYST
Response:   215 UNIX Type: L8
Command:    FEAT
Response:   211-Features:
Response:    MDTM
Response:    MFMT
Response:    TVFS
Response:    UTF8
Response:    MFF modify;UNIX.group;UNIX.mode;
Response:    MLST modify*;perm*;size*;type*;unique*;UNIX.group*;UNIX.mode*;UNIX.owner*;
Response:    LANG en-US*;fr-FR;it-IT;ja-JP;ko-KR;ru-RU;zh-CN;zh-TW;bg-BG
Response:    REST STREAM
Response:    SIZE
Response:   211 End
Command:    OPTS UTF8 ON
Response:   200 UTF8 set to on
Status: Connected
Status: Retrieving directory listing...
Command:    PWD
Response:   257 "/" is the current directory
Command:    TYPE I
Response:   200 Type set to I
Command:    PASV
Response:   227 Entering Passive Mode (74,208,*,*,149,88).
Command:    MLSD
Error:  Connection timed out
Error:  Failed to retrieve directory listing