Sorry, but in this case I do not have any other idea than getting Dell/EMC support involved.  
Hi all,From Networker Installation Manager, I can't upgrade from 19.3.0.6 Build.212 (Virtual Edition) to 19.4.After successfully validating password of admin account, install goes in timeout when trying to validate root account password (see capture 1 and 2). Note: connecting in SSH with admin account (then with root) is OK.Any idea how to fix it? Thank you in advance.KR,  
Unable to upgrade Networker VE from version 19.3 to 19.4