Workgroup computers are not discovered by other discovery methods.In addition to topology, this level discovers potential clients such as computers, and resources such as printers and routers.
When you clear the option to publish a site to an Active Directory forest, all previously published information for that site, including available site system roles, is removed from the Active Directory of that forest.
This discovery method is intended to identify groups and the group relationships of members of groups. If you want to also find the membership of distribution groups you must select the checkbox for the option Active Directory Group Discovery does not support the extended Active Directory attributes that can be identified by using Active Directory System Discovery or Active Directory User Discovery.
The following methods are used to identify the subnet mask of an object: When discovery identifies an IP-addressable object and can determine the objects subnet mask, it creates a discovery data record (DDR) for that object.
Because different types of devices can connect to the network, Network Discovery can discover resources that cannot support the Configuration Manager client software.
Because this discovery method is not optimized to discover computer and user resources, consider running this discovery method after you have run Active Directory System Discovery and Active Directory User Discovery.
This is because this method creates a full DDR for groups, but only a limited DDR for computers and users that are members of groups.
As a best practice, run Network Discovery only when the other discovery methods cannot find the resources that you have to discover.
For example, use Network Discovery if you must discover workgroup computers.
Each System Center Configuration Manager discovery method can find different devices on your network or devices and users from your Active Directory.