I'm using a multisite setting in my website. Where I had install WP on something.web.com where I have some content, menu, plugins atd. I set network admin with Domain Mapping and I have second domain with different name anything.site.org and if I click on Register at anything.site.org, I'm redirecting to something.web.com/wp-signup.php but I need anything.site.org/wp-signup.php.
My second problem is when user registred I want to add him into another multisite.
Where is the problem?