I have the same problem, went through all the steps (wp-config.php and htaccess.conf) and everything described here also, and doesn’t work on my production server. Meanwhile, in my localhost I have the same website, same database, same theme and did the exact same steps and works perfectly.
WP version: 4.7.1
ERROR
When I go to any of the new multisite branches and check in console i’m getting a 404 in all the scripts.
STATUS
a) mysite.com/original – works fine
b) mysite.com/original/wp-admin – works fine
c) mysite.com/original/multisite1 – gives me 404
d) mysite.com/original/multisite1/wp-admin – ERR_TOO_MANY_REDIRECTS
e) mysite.com/original/multisite2 – gives me 404
f) mysite.com/original/multisite2/wp-admin – ERR_TOO_MANY_REDIRECTS
ex.
c)
requesting
mysite.com/original/multisite/wp-includes/css/admin-bar.min.css?ver=4.7.1
instead of
requesting mysite.com/original/wp-includes/css/admin-bar.min.css?ver=4.7.1
Is so frustrating, since It works in my localhost, there must be something above generating this redirection when I activate multisite.
