Double check your user name and password.
This advice may help:
Go to Site manager>(Right click on your ftp host and click on) Properties>Click on "Type" tab>Find "Data connection type:" and change "Use global settings" to "Use PORT".
From: http://forums.globalscape.com/tm.aspx?m=7705
hughv 104 Veteran Poster
hughv 104 Veteran Poster