A wireless media network, comprising: a source device for wirelessly transmitting media data packets; and at least one sink device for wirelessly receiving the media data packets from the source device; the source device comprises an active enrolment mode, a quiet enrolment mode and a data mode, characterized in that the source device is adapted, after power-up, to first enter the active enrolment mode and to transmit enrolment packets and to listen for response packets from the at least one sink device when in the active enrolment mode, if valid response packets for active enrolment are received from the at least one sink device then the source device is further adapted to go into the data mode with the at least one sink device and to transmit the media data packets thereto, and if the valid response packets for active enrolment are not received within an enrolment timeout period, the source device is adapted to switch to the quiet enrolment mode in which it listens at a quiet enrolment trigger channel for a signal from the at least one sink device, wherein the source device is further adapted to remain in the quiet enrolment mode until the signal is received, whereupon the source device is further adapted to go into the active enrolment mode and if no valid response packets for active enrolment are received from the at least one sink device then the source device is adapated to go back into the quiet enrolment mode after the enrolment timeout period, wherein the source device is further adapted to detect the signal when a peak RSSI transmitted over the quiet enrolment trigger channel has a level greater than a quiet enrolment trigger threshold or an average RSSI transmitted over the quiet enrolment trigger channel over a time period has a level greater than a quiet enrolment trigger threshold. a source device for wirelessly transmitting media data packets; and at least one sink device for wirelessly receiving the media data packets from the source device; the source device comprises an active enrolment mode, a quiet enrolment mode and a data mode, characterized in that the source device is adapted, after power-up, to first enter the active enrolment mode and to transmit enrolment packets and to listen for response packets from the at least one sink device when in the active enrolment mode, if valid response packets for active enrolment are received from the at least one sink device then the source device is further adapted to go into the data mode with the at least one sink device and to transmit the media data packets thereto, and if the valid response packets for active enrolment are not received within an enrolment timeout period, the source device is adapted to switch to the quiet enrolment mode in which it listens at a quiet enrolment trigger channel for a signal from the at least one sink device, wherein the source device is further adapted to remain in the quiet enrolment mode until the signal is received, whereupon the source device is further adapted to go into the active enrolment mode and if no valid response packets for active enrolment are received from the at least one sink device then the source device is adapated to go back into the quiet enrolment mode after the enrolment timeout period, wherein the source device is further adapted to detect the signal when a peak RSSI transmitted over the quiet enrolment trigger channel has a level greater than a quiet enrolment trigger threshold or an average RSSI transmitted over the quiet enrolment trigger channel over a time period has a level greater than a quiet enrolment trigger threshold.