Hello Shweta

Some pop up blocker and firewall programs, as well as proxy servers, may prevent communication with our server. If you utilize these types of applications, you may need to disable them. Please check your system for and disable any of the following and remember to turn them back on when you’re done:

Firewall - These are designed to stop downloads from non-approved sites. 

Anti Virus Programs - These will try to stop or scan a download. It may cause the download to be corrupt or damaged. 

Download Monitors - Programs such as GoZilla! and NetZip are not compatible with our server and will sometimes block or stop downloads. 

Screen Savers - In some instances, screen savers can interfere with the download process. If you have a screen saver that is starting while you are downloading, please disable it temporarily until your download is complete.

hope u like the answer 

have a charming day :-)