Need help to configure Zyxel 660HW ADSL FIXED IP Router as Bridge to a Zyxel Zywall 2

Hi I need help to configure a zyxel660hw d1on Bridge mode to a zywall 2. We have a network [login to view URL], Everything was OK but yesterday the modem/router zyxel660 went off and the ISP company came and just change it for a new one. Now network config is not working properly, before modem change we have the zywall 2 with IP [login to view URL] as Gateway, I supouse that the zyxel660hw was acting as Brigde mode with zywall, I have tried to put it on bridge mode but no response and no internet connection Thanks