Dear Customer,

To set the HT502 in bridge mode instead that in router you have to enter to the WEB User Interface, go to basic settings and set the Device Mode to Bridge instead of NAT Router.

For this the Modem has tohave a DHCP server capable of giving IP to the HT502 and the Router at the same time because the HT502 will disable the DHCP server and the WAN Side and the LAN side will be the same Network which is provided by the modem.

I hope this help you. If you need more information, let me know.

Regards