I'm using an existing site and trying to convert it to multisite first on my local machine. I've went through your ultimate guide step by step (using MAMP pro). Everything works well until I try to access a new site I created. The main site works well but the second site I just created doesn't. When I try to access the new site or its dashboard the server just hangs...
Here is the code in my .htaccess file (maybe the problem is there...)
# BEGIN WordPress
<IfModule mod_rewrite.c>
RewriteEngine On
RewriteBase /
RewriteRule ^index\.php$ - [L]
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule . /index.php [L]
</IfModule>
# END WordPress