Multisite Created in a Subdirectory

Hi all,

Long time reader, first time poster.

Generally I can always find an answer to all of my issues here but this time having major problems.
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Issue:
Using Brinkster as my service provider and am on a shared hosting plan. I have multiple instances of development sites set up on this service. It is a Windows server and the Rewrite engine is already on to redirect sites. I have all of my sites under:
/webroot/www/<sitename>

Everything works with the install and I can create sites and work with them. However, whenever I click on the links Network Admin -> Dashboard/Sites/Users/Visit Network it goes into a redirect loop.
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Browser error message is:
This webpage has a redirect loop
The webpage at http://www.designntech.com/wp-admin/network/ has resulted in too many redirects. Clearing your cookies for this site or allowing third-party cookies may fix the problem. If not, it is possibly a server configuration issue and not a problem with your computer.
—–
.htaccess entries are as follows:

#www.designntech.com and designntech.com will map to the folder {root}/www/designntech.com/
#Brinkster Settings
RewriteCond %{HTTP:Host} ^(?:www\.)?designntech\.com$
RewriteRule (.*) /www/designntech.com/$1 [NC,L,NS]

## BEGIN WordPress Multisite Configuration
#RewriteBase /
RewriteRule ^index\.php$ – [L]

# uploaded files
RewriteRule ^files/(.+) wp-includes/ms-files.php?file=$1 [L]

RewriteCond %{REQUEST_FILENAME} -f [OR]
RewriteCond %{REQUEST_FILENAME} -d
RewriteRule ^ – [L]
RewriteRule . index.php [L]
## END WordPress Multisite Configuration
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wp-config.php additions are as follows:

//** WordPress MultiSite – Enable **//

define(‘WP_ALLOW_MULTISITE’, true);
define(‘MULTISITE’, true);
define(‘SUBDOMAIN_INSTALL’, true);
$base = ‘/’;
define(‘DOMAIN_CURRENT_SITE’, ‘www.designntech.com’);
define(‘PATH_CURRENT_SITE’, ‘/’);
define(‘SITE_ID_CURRENT_SITE’, 1);
define(‘BLOG_ID_CURRENT_SITE’, 1);

//** WordPress MultiSite Windows SetUp**//
define(‘ADMIN_COOKIE_PATH’, ‘/’);
define(‘COOKIE_DOMAIN’, ”);
define(‘COOKIEPATH’, ”);
define(‘SITECOOKIEPATH’, ”);
—–
Hoping someone can help.