Intranet File Copy Issue - Win 7

Hello all, I am having an issue copying files greater than 1mb across out network, however, I can download a file of any size off the internet. Here's the situation: I have a Windows 7 32 bit (have also tried 64) machine that is trying to copy a 16mb file from another Windows 7 32 bit computer, on our network, but at another physical location. The files is NOT being copied through a...