WordPress Multisite Redirect Loop on Localhost

So many people seem to have trouble with this, but I haven’t found anything that fixes my issues.

WPMU 4.o (recently upgraded) moving to XAMPP 3.2.1 for development.

My site is at localhost/mysite, or on my machine at C:\xampp\htdocs\mysite.

When I try to visit my site at localhost/mysite I get “This webpage has a redirect loop” or “The page isn’t redirecting properly. Firefox has detected that the server is redirecting the request for this address in a way that will never complete”.

• It’s a subfolder setup, so it should work on a localhost.
• I changed the wp-config.php file, making sure to set the ABSPATH to my folder directory
• I changed references in the db in wp_options, wp_site, wp_blogs
• I changed the .htaccess file in the WP folder according to this post http://codex.wordpress.org/Multisite_Network_Administration#.htaccess_and_Mod_Rewrite
• I followed these guides: http://premium.wpmudev.org/blog/how-to-install-wordpress-locally-for-pcwindows-with-xampp/, http://codex.wordpress.org/Moving_WordPress#Moving_WordPress_Multisite
• It was coming from WPengine, so I had to delete the mu-plugins.php file and the WPengine plugin in the mu-plugins folder.
• I have cookies enabled in my browsers, and have cleared my browser histories.

content of .htaccess

# BEGIN WordPress
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).*) $2 [L]
RewriteRule ^([_0-9a-zA-Z-]+/)?(.*\.php)$ $2 [L]
RewriteRule . index.php [L]
# END WordPress

content of wp-config.php

<?php
# Database Configuration
define( 'DB_NAME', 'mysite2014-11-14' );
define('DB_USER', 'root');
define('DB_PASSWORD', '');
define('DB_HOST', 'localhost');
define('DB_CHARSET', 'utf8');
define('DB_COLLATE', 'utf8_unicode_ci');
$table_prefix = 'wp_';

# Security Salts, Keys, Etc
define('AUTH_KEY',         'xxxxx');
define('SECURE_AUTH_KEY',  'xxxxx');
define('LOGGED_IN_KEY',    'xxxxx');
define('NONCE_KEY',        'xxxxx');
define('AUTH_SALT',        'xxxxx');
define('SECURE_AUTH_SALT', 'xxxxx');
define('LOGGED_IN_SALT',   'xxxxx');
define('NONCE_SALT',       'xxxxx');

define('WPLANG','');

define( 'WP_ALLOW_MULTISITE', true );
define( 'MULTISITE', true );
define( 'SUBDOMAIN_INSTALL', false );
$base = '/';
define( 'DOMAIN_CURRENT_SITE', 'localhost/mysite' );
define( 'PATH_CURRENT_SITE','/' );
define( 'SITE_ID_CURRENT_SITE', 1 );
define( 'BLOG_ID_CURRENT_SITE', 1 );

# Thats It. Pencils down
if ( !defined('ABSPATH') )
  define('ABSPATH', dirname(__FILE__) . '/mysite');
require_once(ABSPATH . 'wp-settings.php');

I have some other WP and Drupal sites working locally. Mod rewrite is enabled.

When I comment out the multisite stuff in the wp-config.php file, the site partially loads, but with an error message about get_blog_details (which is expected). So it’s something about the multisite.

I’ve been troubleshooting this for two weeks, and I can’t figure out what to do. Any help would be appreciated!

Thanks!