I'm having problems with non-www versions of my MU sites.
My MU sites are like this:
Main Site => www.maindomain.com Site 2 => www.domain2.com (domain2.maindomain.com) Site 3 => www.domain3.com (domain3.maindomain.com)
but when someone uses the non-www version it redirects to www.maindomain.com login page. I used
define( 'NOBLOGREDIRECT', '%siteurl%' ) it didn't work the redirections just changed to the homepage of the main site.
Also tried to forced redirection on .htaccess, still not working.