User levels access site

I have pro sites installed and Membership. Not sure how to do this but I need to restrict a particular subdomain (support.domain.com) on my multisite to specific levels in pro site. Basically when you get to support it asks you to login… i have tried this and ANY member on the network can login to see the site regardless if they signed up specifically for Support and that’s awesome… here’s the thing… how can i restrict access to anyone who does not have a certain level of membership? Ok so Bobby ownes bobby.domain.com… he comes to support.domain.com to get help… he is a free blog owner so it does not allow him access. He goes back to his dashboard, upgrades his plan and then comes back to support… and voala… he’s in :slight_smile:… this is what i need. But i need it to be accessable by evryone with a paid membership on the site