configure RB750r2

hEX lite RB750r2
I want to configure hEX lite RB750r2 as a load balancer. I connected 2 modems to port Internet and Lan 1. DHCP is eanabled for both modems and
they are using different IP ranges (192.168.1.0/24 & 192.168.2.0/24)
I added DHCP client for ether 1 (Internet Port) and it successfully obtained new IP address from modem 1.
But when In try to do the same procedure for the 2nd modem which is connected to ether 2, It can not obtain new IP addresss.
If I connect modem 2 to router’s internet Port it can obtain new ip address successfully.

Is your ether 2 member of any bridge? Bridge/ports, if yes try to remove it.

/export hide-sensitive file=anynameyouwish