Error: 426 Data connection: Illegal seek.

[dracodoc]

I had met this problem many times, especially with some ftp server:

[R] 150 Opening BINARY mode data connection for xxxxx
[R] 426 Data connection: Illegal seek.
[R] Transfer Failed!

I searched the forum before, someone said its the problem of PASV, problem of server, etc. I tried their solutions, in some special case, to enable " use site ip for passive mode connections" can make it work, but recently all of these failed.

I believed it's something related to flashfxp, because I can always find another ftp client to download same file without problem. But sometimes these other clients fail too. I used totalcommander, flashget, and now leapftp. Leapftp is downloading properly now. But I wish I can fix the problem and use my flashfxp again.