Has anyone experienced file verification problems lately?

This is what I'm getting: I'm downloading a large file, maybe 350 mb - 700 mb. All goes well until the file is completely downloaded, no indication of any corruption. During the file verification stage, the file is checked and the final 1 % seems to fail the verification process and is re-downloaded again. Fails again, and is re-downloaded. This is repeated until I finally give up and stop the download.

Sometimes if I rename the incomplete file to something else, I'll get a complete file, sometimes not. Can anyone explain this?

I'm inclined to blame corrupt files, and not LW. Smaller files, such as music files and short videos are, more often than not, flawless.