It is smart to use the most stable internet connection when download large files. Which is a wired line.
Using an ethernet cable plugged directly into your computer can dramatically increase download success. Another great way to improve consistency is with a download manager.
A download manager is a computer program dedicated to the task of downloading. Although web browsers may have download managers incorporated as a feature, they are differentiated by the fact that they do not prioritise accurate, complete and unbroken downloads of information. To minimise the risk of download corruption, it is recommended to use a download manager.