What is Network Manager?
Network Manager is a Fortinet product that manages multiple controllers.
ESS, Security, VLAN, GRE and RADIUS profiles can all be configured either from Network Manager or from the controller. You can tell where a profile was configured by checking the read-only field Owner; the Owner is either NMS or controller. If a profile belongs to Network Manager, you cannot alter or delete it from a controller.
If a profile belongs to Network Manager, the recommendation is to alter/delete it from the Network Manager interface. If for some reason Network Manager is not reachable from the con What is Network Manager?
troller, then the recommendation is to unregister the Network Manager server from the controller using the nms-server unregister CLI command.