Hello,,

Recent need to develop a set of FTP transmission system, which USES NTSL () function, this function is to traverse a directory structure into an array, but found in practical application, connect the 16 sets of external server, part can return to normal value, part of the return value is empty. Here is empty, can normal connection to the external server, use other commands such as dir command, can list file directory, but NTSL () function returns null,

Which direction the to troubleshoot the problem, check the direction of a lot of data is not found, hereby to consult you,