Applications such as Filezilla that directly allow uploading or download of files using FTP (File Transfer Protocol) are not supported on the APNK network including the APNK wifi service.
You can browse to and download files using FTP via a web browser - if anonymous access is allowed - however you will not be able to upload.
Online FTP services can be used as a possible workaround
Note for wifi users
To browse to FTP sites
-> enable FTP proxying in your web browser network settings [ 10.10.10.1 port 80 ]
See also
Is the internet filtered?Information on the internet filtering in place on our PCs and wifi.