FTP on Internet Explorer 10 - authentification -

i got problem week , couldn't find solution fix it.

i got ftp project, allows me connect ftp server authentification. in browsers except internet explorer, works.

i want "a href" leads me authentification page in internet explorer 10.

lets ftp has following adress:

 172.11.111.111 

the href looks like:

 ftp://user@172.11.111.111 

i tried:

• ftp://user@172.11.111.111/folder
  
• ftp://172.11.111.111/folder

..

the other browsers don't need "folder", read folder thing on google nevermind, doesn't work. firefox , other browsers realize when have href like:

ftp://user@172.11.111.111/ 

, there gonna authentification , data required.

the error-output following:

"this page can't displayed.make sure web adress correct"

i hope can glad me out of that.
regards