Why is 'Scan OU Recursively' greyed out when scanning the domain with GFI LanGuard? Author: Luis Fernandes October 27, 2020 18:34 Updated Answer The option 'Scan OU recursively' is only available if you open the Properties of any OU. By default, Network Discovery scans the whole domain, including all the OUs. The check box is used to synchronize a specific OU and the sub-OUs. Related articles Disabling Network Discovery in GFI LanGuard Error: 'You are unauthorized to access this area of GFI LanGuard Central Management Server.' While Accessing the Central Management Server Console Managing the Properties of Groups of Agents Why does the information on a scan seem to be static and vulnerability status is not changing? Why did LanGuard not import the OU when synchronizing with AD?