System for user-friendly access control setup using a protected setup

A method and apparatus includes a determining unit configured to determine whether a device entering a network should be allowed access and an executing unit configured to execute a configuration protocol between the registrar and the device and to a shared unique configuration key between the registrar and the device. If the device provides a privileged service, the configuration protocol enables the device to advertise the privileged service or if the device is a control point, the configuration protocol enables the device to advertise that it is able to control certain privileged services. The registrar also includes a controlling unit configured to obtain a controller key, if the registrar is to become controller of the new device and a service unit configured to execute a credential service that allows devices providing privileged services to delegate issuing of access control credentials to the registrar.