Yes and no. Yes, Multisite will make it so you can have a site and log in with the same ID as the others.
No, cookies are killing you. We’re hitting into the realm of cross domain cookies. Try putting this in your wp-config (changing example.com to your domain) in the Multisite section:
define( 'COOKIE_DOMAIN', 'example.com' );
define( 'ADMIN_COOKIE_PATH', '/' );
define( 'COOKIEPATH', '/' );
define( 'SITECOOKIEPATH', '/' );
define( 'COOKIEHASH', md5('http://example.com') );
Thanks Marc and Mika…
Sorry for not making my question clear.
I do have one site on the main install URL. What I meant is, can I set another subdomain, say site1.mydomain.com that I can manage from my network dashboard. I tried setting another site for myself from the dashboard but it sends me to site1.mydomain/wp-admin.php to log in. I am hoping that I can manage site1.mydomain.com directly from the same network dashboard. (Just like how I control my main site from the network dashboard)
If yes, please explain the steps to get it done.
Cheers Mika, I will put the code in my wp-content folder.
Thanks in advance all…
No.
Multisite is multiple separate sites with one install of the WP core files. Each site has it’s own dashboard.