customers users can not login and surf

Hello Folks!

I am new on this, but I have been asked to setup hotspots and other authentication for some networks.

RB450G + RoS 5.24 + usermanager 5.24

I successfully followed the guides, most material was dated and menues in usermanager 5.24 did not match guides very good.
So I have admin and users, that work users can login and surf etc.

Next step is to add customers and then login as customer and add his users, that part worked.
But the customer user can not login, user not found is what I got all the time.
If I change owner on the users to admin, then it works.
I tried to add a router for the customer I added, but it stops with ip address is already used so that did not work either…

How is customers supposed to work and have users that can surf etc. ?

Thank you in advance!