FTP can not connect to the problem

Can not connect on the FTP Socket problem: When using FTP to upload files list when the situation can not may be due to choose to upload PASV mode caused. Therefore, uploads to PORT. The same software, different versions, set methods are also different, so need to be set according to actual situation (if canceled after pasv can not access, attempt to pasv front of "Use a firewall to access" selected and try again.)
CuteFTP 5.0XP set: 1, select Edit -> click Settings 2, select the Firewall -> click the "PASV Mode" option to remove the tick in the box -> click OK ! if the connection after the "Data connection closed, transfer aborted ", please enable firewall access option selected.
CuteFtpPro3.X settings: 1, select Tools -> click Global Options 2, select Connection -> Select the data connection type: PORT -> click OK.
Other FTP setting method: Cute FTP 3.5:FTP-Settings-Options-Firewall, the "PASV mode" check box in the tick before removing. Leap FTP2.7.2: Sites-Site Manager-Advanced, the "Use PASV mode"check box in the tick before removing.