MU WP 3.2 Installation problems

Created a brand new 3.2 wp site from the scratch.
Followed the instructions for setting it up as multi-site/creating a network.
my .htaccess file is what it should be, per what it gave me.

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]

and my wp-config.php has exactly what was provided.

/** Enable Multi Site */
define( 'MULTISITE', true );
define( 'SUBDOMAIN_INSTALL', true );
$base = '/';
define( 'DOMAIN_CURRENT_SITE', ' ADBSDFD.com' );
define( 'PATH_CURRENT_SITE', '/' );
define( 'SITE_ID_CURRENT_SITE', 1 );
define( 'BLOG_ID_CURRENT_SITE', 1 );

after that I created one extra user “xxxx”.
When I log out and log in back as admin he’s still there, this user name “xxxx”!
I cleaned cash but it still there in right top corner.
I built another mu site and didn’t add any more users and that site when I click on Network Admin give me:
This webpage has a redirect loop
And there is no SuperAdmin.
I did a check that my PHP and SQL versions are up to date.
And I tried to do installation two ways: by myself and by Softaculous that is on my host side.
I did it many times And I always do everything from the scratch.
Is anybody can help me with this?
How can I clean this out?
Thanks a lot!