Torrent not dokachivaet files

In General such problem:
Put the fix file in the Torrent (games, movies). Later N..th time, the torrent shows 100% fix. Put the movie on, but it begins to fail, shows with scrappy in the end just crashes. If the game is not even installed and crashes with the error.
Put the torrent to STOP, recalculate the hash, it turns out that the file is not downloaded 90%. Put on a resume, pumped up to 100% and again recalculate the hash again the same thing, but only fix at 95%. In General since you have to do five times (the time kills a lot). And so constantly with all files.
Sinned on the system, but faith is all reinstalled, put everything back, but the problem remained.
Tell me what could be the problem and how can it be solved?