Networks for WordPress plugin ! on Multisite - customized logins

Hey guys, I have a Wordpress Multisite. I'm using Networks for WordPress plugin. so I can create many networks inside my WP multisite -------------------------- Before you start reading I would recommend to hire those who had experience with that plugin or heard about it so they know the behavior of Multi Network or those who really good in customized WP login/redirection. -------------------------- First I wanted to redirect users who login from one site in my network to their primary_url / Primary blog. (basically the blog they become subscribe first/ the blog the registered first). For doing it I'm using this plugin in my mu-plugins: [login to view URL] or <?php /* Plugin Name: Redirect Users to Primary Site Plugin URI: Description: Never see "you do not currently have privileges on this site" when logging in on your multisite ever again! Version: 2014.06.02 Author: khromov Author URI: [login to view URL] License: GPL2 */ /* [login to view URL] */ add_filter('login_redirect', function($redirect_to, $request_redirect_to, $user) { if (!is_wp_error($user) && $user->ID != 0) { $user_info = get_userdata($user->ID); if ($user_info->primary_blog) { $primary_url = get_blogaddress_by_id($user_info->primary_blog) . 'wp-admin/'; if ($primary_url) { wp_redirect($primary_url); die(); } } } return $redirect_to; }, 100, 3); It's doing the job and users are redirected to primary_url. However, because i'm using Networks for WordPress plugin, sites has individuals logins. When user logs in from X site the user redirected to its Primary site (great) BUT he need to login AGAIN ! Without Networks for WordPress plugin users would stay logged in when they visiting subsites because they all in one single network. Does anyone knows how can I keep the user logged so they don't need to be login again when visiting other networks or to add any codes to the redirection code above so it will keep the user logged ? I think this work can be done just by exchange codes + if you got it solved I probably use you for another task. Thank you !