[mrmacmac]

Hi folks,

I have a bit of an issue I’m hoping someone can help out with.

At the moment I have a WP Multi-site setup running. The network (right now) consists of THREE websites, and each of these sites is running on a subdomain: domain1.site.com, domain2.site.com, domain3.site.com.

Right now, the ‘root’ site is domain1.site.com. However, what I need to happen now is have the ROOT site moved to be site.com. I need this so that all admin pages reside on site.com, and so that I can easily create new sites/subdomains using the multi-site setup.

Any idea how to do this quickly and easily?

[@mercime]

What I’m getting from your post is that you have separate single WP installations in 3 physical subdomains domain1.site.com, domain2.site.com, and domain3.site.com and now you want to move the installation of domain1.site.com to domain root site.com.

If this is the case, then:
https://codex.wordpress.org/Moving_WordPress
https://codex.wordpress.org/Changing_The_Site_URL

If you mean differently, then please post your question with more specifics at
https://wordpress.org/support/forum/multisite