Multisite User Registration Page -not default

Im trying to enable a registration page in my wordpress Multisite (sites are setup as sub folders). The registration link is only taking me to the default site, not the sub folder site.

Im also using this in conjunction with Optimize Press Members.

I tried the plugin "Join my multisite" and it kinda worked - however even though the site was set to accept new registers, it kept thinking that it was deactivated.

My goal is to have the Wp-signup link not go to the default site. Any suggestions?