You can access the AT&T router settings by entering the default credentials. When you reset the router its settings will change into default settings which are known to all and therefore not necessarily safe. Here are the steps on how to access my AT&T router. In order to protect your connection you must change the username and password by logging in through default credentials. Type 192.168.0.1 in the URL section of the web browser and you will be directed to the login page.