When you are prompted to log in at this stage, it is the authentication towards the server where the archive server is installed you need to use. By default, local users and local administrators (domain administrators are often members here) on that server are allowed to connect. Unless these settings were modified during or after installation, one of these users should work. In the example my server is APP1 and domain is mydomain:
Either local admin:
Or domain admin:
At least that's what has ultimately worked for me. Normally i will add the domain users group to the archive server, so connecting will be a walk in the park.
Thanks for the answer,
I finally solve the problem the way you just evoque. It is the Vault master password that has to be given once. Then it works fine.