Connect distributed recording server to new management server

I’m trying to connect my recording server on one PC with the management server on another PC. After changing the management server address in the server configurator and clicking on register, a new window pops up and asks me for the login data of the system administrator. I tried to log in with my own account (admin account) and I tried to log in with a basic user which was added to the admin role in the management client. No account seems to have the rights to log in. What would be the right account to use here?

As this is not related to software development with the MIP SDK, which is the focus of this forum, please ask again in the support community, you should get better help from the partners using the support community.

https://supportcommunity.milestonesys.com