Connect computers to your gateway - AT&T Official Site
www.att.com › support › articleJan 05, 2018 · Simply connect an Ethernet cable from the Ethernet port on your computer to any available Ethernet port on the back of your gateway. Ethernet ports are the yellow ports found on the back of your AT&T gateway. Your gateway may vary from the image shown. Connecting through your Wi-Fi network gives you the availability to have multiple computers ...
Connection Options - att.com
www.att.com › device-support › articleModem and router setup. Connect the ethernet cord from the Cell Booster WAN port to the Router Ethernet port.. Note: Do not connect Cell Booster directly to your modem. If the Cell Booster is connected to a router that is connected to a modem and both the router and the modem have NAT (Network Address Translation) enabled, disable NAT either in the router or in the modem.