Unable to download large file

Hi all,
I have been trying to download a 230MB EXE file from an FTP server for a while now. I keep getting an error message:

Internet Explorer cannot download FILE.EXE from ftp.servername.com. The connection with the server was reset.

Sometimes I will have only a few MB downloaded and sometimes about 100MB. I have shut off the browser service on my W2K workstation. I have IE6.0.2, 128MB RAM, plenty of free space on the drive and a high speed connection via my LAN. The Domain admin says there are no restrictions on downloads and I am the local admin for my building and my workstation.

What causes this and how do I get this file that I need for work without having to pay for a CD (we’re government on a tight budget)?

Thanks in advance!