Nope, Resume is dimmed.
That's not for all downloads though, just the ones that fail (like the latest build from
http://nightlies.videolan.org/build/macosx/ for me).
If I download a file and stop it myself, then the button is active.
FYI, OW just says my download stopped (no more information in the Download window) but Safari says "connection reset by peer". OW used to be more informative...