There should be only one DHCP server on your network. This DHCP server may be built in to your DSL or cable modem, a standalone router, or integrated with your WiFi router. In any case, only one device should act as a DHCP server on your network. If more than one device has it enabled, you will likely see address conflicts and will have issues accessing the Internet or other resources on your network, such as your Libratone AirPlay speaker.