Dear Customer,

To set the HT502 in Bridge mode, you have to enter to the Web User Interface, then go to Basic Settings and set the Device Mode in Bridge instead of its default "NAT Router," update and reboot.

For this the Modem has to be able to give IP to the HT502 and the Router at the same time because the HT502 will disable the DHCP server and will server as a bridge meaning that the Wan and Lan Side will be the same Network provided by the modem.

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

Best Regards,