If you want to configure the device with administrator level, type 
in the
username field and 
in the password field.
If you want to configure the device with the user level, type 
in the
username field and 
in the password field.
Then, click 
to log in. You can modify these passwords for security and management purpose.
At the configuration homepage, the left navigation pane where bookmarks are provided links you directly to the desired setup page. Click on the desired item to expand the page in the main navigation pane.