Replying to mark TOTAL OF ALL PREVIOUS POSTS IN THIS DISCUSSION as the SOLUTION. But please continue to post any questions/comments.
One of the reasons why a deployment could fail is NTP issue. This KB serves as a guide to prevent a known DP4400 failure during deployment. These actions need to be taken BEFORE committing the DP4400 deployment from the Appliance Configuration Manager (ACM). This KB should be followed BEFORE deploying the DP4400. Link : [URL]
DP4400: How to avoid known NTP issue which causes a deployment failure