FTP task in SSIS

Hello,

I need to coonect to secure FTP to retreive some text files to our local pc.

I have credentials like  IP: 51.502.09.91 , user id and password.

Using these credentials i am able to connect using other tools like  WINSCP etc tools even with out port number.  But in SSIS  FTP taks i m getting errror - like connection can't be established.

What can be the reason please guide me.