99% and it stops
 

Three or four times, on different files I get 99% of of the file and then it hangs up. All of the files were programs, some zip and some exe.
Question: Is this a common issue?
Have I missed some type of step to compleat the download? It's discouraging to wait for a day and a half to only find 99%. of what I need and without the laast 1% the other 99% are useless