problems downloading Elements Photoshop & Premier 2018

I was able to download both programs on my MacBook Pro within 30 minutes a piece with no problems.  I have not been successful installing them on my Mac Mini.  I checked with Apple and I have all the necessary system requirements.  I also downloaded the newest Sierra software.  I followed adobe's troubleshooting guide--that is: turned off screen saver, turned off firewall and I don't have any Adobe Installers for this series on Applcations-utilities to uninstall.  I keep getting the message that internet stopped responding after attempting the download for several hours.  Anyone out there have a possible solution that I could try.  Thanks, Janet