Thank you for your reply. In case you are german speaking, there is some more Information regarding the login issue here: Fehlermeldung: Die Login-Zeit ist abgelaufen. Melden Sie sich erneut an - #6 by Distel (hope the lik works).
If not, I‘m glad to translate. But until then, i‘m lazy 
As an addition, i´ve read the article about the implementation of your incremental backup before, however … an apple will stay an apple, doesn´t matter how often you name it banana. What the EX2 Ultra is doing is NOT an incremental backup (Backup - Wikipedia):
An incremental backup stores data changed since a reference point in time.[9] Duplicate copies of unchanged data aren’t copied.[7] Typically a full backup of all files is once or at infrequent intervals, serving as the reference point for an incremental repository. Subsequently, a number of incremental backups are made after successive time periods. Restores begin with the last full backup and then apply the incrementals.
