Thread:Project:Support desk/Shared tables

So I'm starting out with two fresh MediaWiki installations for my school and I want to share users, user groups, and user properties between them. The goal is to disable account creation on MediaWiki TWO and have all accounts created through MediaWiki ONE, and have all user groups carry over from ONE to TWO.

I have $wgSharedDB = 'mediawikione'; $wgSharedTables[] = array( 'user', 'user_properties', 'user_groups' );

set in the LocalSettings for MediaWiki TWO, but user groups aren't carrying over. What am I doing wrong? Thank you.