Theme and wp-admin missing?

I have multisite set up and it’s almost working… I can create new sites anyway. I’m using sub-folders.

The initial main site works and appears fine. the couple problems I’m having are the new site has no theme applied and I also get a 404 when going to the new site’s wp-admin.

I’ve searched all over and tried a few .htaccess suggestions from others with similar problems to no avail. Could it having something to do with the main install being on a sub-domain?

This is all a very clean fresh install.
local.architecturalscience.com = main site
local.architecturalscience.com/test1 = new site.

My current .htaccess file:

# BEGIN WordPress
<IfModule mod_rewrite.c>
RewriteEngine On
RewriteBase /
RewriteRule ^index\.php$ – [L]

# uploaded files
RewriteRule ^([_0-9a-zA-Z-]+/)?files/(.+) wp-includes/ms-files.php?file=$2 [L]

# add a trailing slash to /wp-admin
RewriteRule ^([_0-9a-zA-Z-]+/)?wp-admin$ $1wp-admin/ [R=301,L]

RewriteCond %{REQUEST_FILENAME} -f [OR]
RewriteCond %{REQUEST_FILENAME} -d
RewriteRule ^ – [L]
RewriteRule ^[_0-9a-zA-Z-]+/(wp-(content|admin|includes).*) $1 [L]
RewriteRule ^[_0-9a-zA-Z-]+/(.*\.php)$ $1 [L]
RewriteRule . index.php [L]
</IfModule>
# END WordPress

Thanks to anyone who might have some insight.