According to support in DU Discord. If you have following error:  not authorized to connect to private server (error 106),   You have to put in ticket (submit request) in support on the website and ask for new activation code for you account.   When i get new activation code, ill write it here if that fixed issue or not.   EDIT: Also, in your ticket. Write down your email that your DU account is linked to. Seems they need that too.