A method of operating an access point, AP, comprising: determining, by the access point based on at least one criterion that includes a non-time based criterion, whether to activate group-addressed transmission of information relating to an access network; and wherein the transmission of information relating to the access network enables at least one wireless device to perform discovery to identify available services of the access network; and wherein the determining comprises filtering a field in a Generic Advertisement Service, GAS, query received by the access point from the at least one wireless device; and determining, based on the field, whether to respond to the GAS query with at least one of: using an individually addressed response when the access point determines to activate an individually addressed transmission responsive to the field having a first value, or using a group-addressed response when the access point determines to activate the group-addressed transmission responsive to the field having a different second value; in response to determining, based on the field, to activate group-addressed transmission of information relating to the access network, transmitting, by the access point, information relating to the access network in a message targeted to a group address; wherein, prior to determining to activate the group-addressed transmission of information relating to the access network, the access point is in a unicast mode. determining, by the access point based on at least one criterion that includes a non-time based criterion, whether to activate group-addressed transmission of information relating to an access network; and wherein the transmission of information relating to the access network enables at least one wireless device to perform discovery to identify available services of the access network; and wherein the determining comprises filtering a field in a Generic Advertisement Service, GAS, query received by the access point from the at least one wireless device; and determining, based on the field, whether to respond to the GAS query with at least one of: using an individually addressed response when the access point determines to activate an individually addressed transmission responsive to the field having a first value, or using a group-addressed response when the access point determines to activate the group-addressed transmission responsive to the field having a different second value; in response to determining, based on the field, to activate group-addressed transmission of information relating to the access network, transmitting, by the access point, information relating to the access network in a message targeted to a group address; wherein, prior to determining to activate the group-addressed transmission of information relating to the access network, the access point is in a unicast mode. using an individually addressed response when the access point determines to activate an individually addressed transmission responsive to the field having a first value, or using a group-addressed response when the access point determines to activate the group-addressed transmission responsive to the field having a different second value; in response to determining, based on the field, to activate group-addressed transmission of information relating to the access network, transmitting, by the access point, information relating to the access network in a message targeted to a group address; wherein, prior to determining to activate the group-addressed transmission of information relating to the access network, the access point is in a unicast mode.