Multi-Site register link returning 302 and going to home page

working on a multi-site instance that has an issue with the register link on the login page. link is there and URL /wp-login.php?action=register. When necking network info in Fire Fox it shows 302.

This is on Dev local and I get the same issue on the live site, so not the hosting.
My local Dev is running EasyEngine and NGIX, so not .htaccess.

I get 302 /wp-login.php?action=register
then 302 /wp-signup.php
then 200 /

I have gone through turning of plugin after plugin and nothing. I really need some direction please.