How to use Customer in Managed services edition

Good news… I think I have it figured out, it was due to adding an existing setup as a customer.
I created new customer and new remote, and after some testing it now looks like it works, I am guessing something was hidden that was breaking things.
At least the dashboard looks good now, but still cannot login as admin, I was thinking it could not due to “lack of data”, but now has data, but still getting invalid credentials, so will keep on that one.
Thanks
Sean.