Setting the AR 750 as an access port

I have a Motorola Cable Modem and in another room I want to have the AR 750 act as an access port so that I can have wifi in another room in the house and also connect an internet enabled tv into the device. I can’t see what to do to get this to work. Any advise?

If your Motola Cable Modem with WI-FI, you can connect it via wisp mode. Here is Guide