i'm not sure if asihttprequest support ftp (and i don't understand if you are trying to load an ftp or no because you speak about a ftp but use a https link), and if it is a ftp, are you sure that you really want that user upload directly on your ftp?

. Maybe what you want is that user use a php script to upload his image.
However what i would try
Code:
NSURL *url = [NSURL URLWithString:@"https://50.22.***.194:22"];
NSURL *url = [NSURL URLWithString:@"https://username:password@50.22.***.194:22"];
and i would try to change "https" to "http" and to "ftp" and to "ftps"