Multiple Active Directory Domains
If your network includes multiple Active Directory domains or you add a new domain to your Active Directory infrastructure, K2 will not automatically discover the additional domains and they wont show up in the K2 environment. K2 adds the default domain based on the domain of the account used to install K2; you must add, edit or delete additional domain manually, using the K2 management site.
You can add multiple AD Domains using K2 Management, see the K2 Five User Guide for more information.