For security reasons, if you forget user name and password, you have to initialize the camera using camera's INITIAL SET button.
Initialization will delete all settings and stored data in the camera.
For the initialization procedure, search for the camera in the i-PRO product page and refer to Web Guide.
IP Camera / Network Camera | Products | i-PRO Security System
Please keep your user name and password in a safe place so that you do not forget or lose them after they have been set up.