We set up Multisite for 2 sites a.domain.com and b.domain.com. We set this up using A records to point these subdomains to our server. The primary site domain.com is actually a separate site that isn't using WordPress and is sitting on a different server.
It looks like this:
domain.com (hosted on Host X)
a.domain.com (hosted on Host Y)
b.domain.com (hosted on Host Y)
These 2 subdomains on Multisite are running fine but we can't get to the /wp-admin/network area to upgrade the network and other plugins since the main domain (domain.com) is on another server.
Any ideas? htaccess (on domain.com)? split the sites? any other ideas?
Thanks so much!