I'm in Network Admin > Settings > Domains
ie. mydomain.com/wp-admin/network/settings.php?page=dm_domains_admin
I installed the plugin following all the directions. Then I added the domains I wanted mapped. And tested it and it worked. I went back a week later and the domains no longer map.
I see no list of active domains (as one would presume the UI would show). On the Domain Mapping: Domains page there is just the search box and then the New Domain form. nothing else.
I'm a savvy developer, so I can easily dig in and help figure this out. but I just don't know where to start with this plugin.