How to change the administrator password to your router DIR-868L?
Step 1: Open your web browser and enter http://dlinkrouter or http://dlinkrouter.local or http://192.168.0.1 into the address bar.
Step 2: The default username is Admin and the password is blank (nothing). Click Login.
Step 3: Click the Tools tab and then click Admin on the left.
Step 4: To change the administrator password, enter a new password in the Admin Password section.
Step 5: Click Save Settings to save the settings.