You can modify the device web password for both the administrator account and the user account.
To set it up, go to System > Security > Web Password Modify interface. Click Change Password.
To enable or disable the user account, scroll to the Account Status section.
Modify Security Questions
Security questions allow you to reset the web password if you forget it. After setting up the security questions, you can click "Forget Password" on the login interface, enter the answers, and a password reset window will pop up.
If you do not set up the security questions, clicking "Answer security questions" will prompt you to "Please contact your service provider".
To set it up, go to the System > Security interface. Click Modify Security Questions.
You are required to fill in the correct password before modifying the security questions.