7004ABR Router and DSL-360T Modem

Hello,

Is it a wise idea to have DHCP in router and modem both active ?

I connected DSL-360T modem to WAN Port of 7004ABR Router. Connection type
configured in router is PPPoE, modem acts as "bridge".

Router is 192.168.2.1, modem 192.168.1.1, and DHCP of router assign
192.168.2.100 and 101 to two PCs.

The problem is that router connection status is connected, but PCs do not
have access to internet. Both DHCPs are active, so I tried to deactivate the
one in a modem but nothing changed,

It seems that I need some advise ...

Regards,
Sergio