Just click on "Administrator" then "Password", Then you can change your password here, Enter you old password on the first tab, and in next tab enter "New Password" and "Confirm Password" 

NOTE - Keep in mind that the new password and confirm password will be the same

So in this way you can easily change your password if you are getting any issues Edimax Router Setup related this can contact our experts they are always available for your help just need to visit our official website.