Unable to login to new custom domain on multisite?
Found the answer. I had not ran the Domain Mapping plugin before switching it to a custom domain. So the correct steps should look like this: Create new site as a sub-domain (site.example.com) Point sub-domain at root (example.com) Point custom domain (site.com) at root (example.com) Visit admin page for sub-domain (site.example.com) Add custom domain (site.com) … Read more