First, connect your computer to your internet provider. The internet connection can be through a wireless network or LAN with reliable internet speeds. Slow internet could interrupt the process. 2. Open your browser and type 192.168.1.254 into your AT&T router IP address field. Press Enter to proceed to the ATT router log-in page. 3. You will then be directed to a login page. From here, enter your username and password. If you have not yet changed the default AT&T router settings, type admin for username. Look for a sticker at the side of your modem and enter the variables next to “System Password” or “Device System Code.” If a password is required and none can be found on your router, try leaving the page blank. Contact AT&T if this does not work. 4. Once done, you will find your router’s web interface and access the factory settings for the option to change the default username and other details.