D-link DIR 685 FTP 問題

唔知點解 download d 大 file (1gb or 4gb), download 到 205MB 就話我 download 完, 次次都係咁. 可以點 set.
唔該 ching

P.S. 用唔同電腦, 唔同 network, 唔同 ftp client program 試咗好多次都係一 download 到 205MB 就話我 download 完.