Failed - File incomplete

when i try to download anything i keep getting this, tested several dozen ps3 and xbox 360 games. starts out fine then after few min this happens. my internet is showing 900mb download an upload. an if i do large 100gb download off steam, it runs fine fully through no issues. so usually downloads form here will bounce back an fourth between like 5-6mb, but i am noticing its jumping down to 0 a bunch.