This sound like something that happened to me when I first got my Amiga online.
Funnily enough it was AmiNet I was downloading from. I found that when I was downloading lots of archives at the same time, I'd have more problems.
If you have had 3, 4, 5, 6 (I can't remember how many at a time I was downloading) this may have happened to you too. If something is broken, try downloading it on it's own & see if it works then.
FuZion.
