I have some problem about the ISA Firewall, Why in some where I full internet use IE to login my ftp server ,after I login my ftp server I can't browse the folder and file ,but I can use IE to login other ftp site with download and upload in the same computer .But my ftp server is still already work ,why i said that,because I used the client ftp software <WS_FTP> I can login correct and browse all file download and upload to my ftp server.Please help!