I am running a multisite WordPress installation using the subdomain option. Before installing, I had one subsite (sub.mydomain.com). After installing the plugin, following the directions, I cannot access the subsite anymore using the subdomain. I haven't mapped a domain yet. Actually, I want some sites to be available using subdomains of my main domain.
In my DNS settings there is a * A-record and a 'www' CNAME record. In the settings area I've only selected "Permanent redirect" and "User domain mapping page".
When trying to visit the subsite's dashboard (sub.mydomain.com/wp-admin), I get a 404 error saying "The requested URL /wp-admin/ was not found on this server."
When trying to visit the subsite on the subdomain, I am redirected to the server's main site (so not even to my own main domain).
Any help would be appreciated.