How do I change the administrator password of my DIR-857?
Step 1 – Open a browser and go to the router’s IP address, which by default is http://192.168.0.1
Step 2 – Login to the router. The default username is Admin there is no password by default.
Step 3 – Click the “Tools” tab on the top menu, then “Admin” on the left hand menu.
Step 4 – To change your password, simply type the password into both fields, then scroll down and click “Save Settings”.