I just connected my TP-Link router with Zyxel modem but the router is not getting Dynamic IP info from the modem.
To get you where I am check this link:
Router should be able to pickup all info from modem, same thing in the manual.
modem connected to router in WAN port.
can login to modem, can login to router and configured. when asking router to automatically pickup info it is giving 0.0.0.0
Zyxel modem Black, I am sure they are all almost the same.