Hi Pat! Yes you can. You can put the Gateway in bridge mode and it makes it act as just a modem.
Here is how;
connect a computer to the gateway with a wire
got to http://10.0.0.1
to connect, the default username is ''admin'' and the default password is ''password''
Select ''gateway'' then ''at a glance'' in the left menu
activate bridge mode
clic ok to confirm, the gateway will reboot
Have a nice day!