GrooveA CPE Bridge manage

So I have a Mikrotik GrooveA AC setup in CPE Bridge mode connected to the WAN port of a Pepwave MAX_BR1 router. If I connect the GrooveA to a switch port, it gets a DHCP address from router and I can access it via webfig. If I connect the GrooveA to the WAN port of the Pepwave, it gets an IP from the WiFi connection and assigns it to the WAN port, but I can no longer access the GrooveA webfig in order to change the WiFi settings. Any thoughts on how I can manage the GrooveA when it’s connected to a WAN port of a router?

Has anyone figured out how to access the GrooveA when in bridge mode? Is this possible?