The first thing to check is that the FUSION Stereo is displaying a valid IP address on the 'about' screen. Select the settings menu then 'about' to confirm. If the display is " IPNone " the router is either not a compatible DHCP product or is not configured correctly. If the IP address starts with the prefix 169, it is not valid, as this is a default address when the router is not sending a DHCP generated IP address or is configured incorrectly. Please review the Router's instruction manual or contact the manufacturers website for technical help.