When you avail PLDT Internet connection, its router is configured with factory default settings. When you use the local web address to access your router's interface/settings page, you just need to use the default username and password. That means that users that connected to your WiFi internet can go directly to your router's settings page and change your router's configuration. To avoid that, and to improve the security of your network, change the default password.
1. Plug your PLDT Home Fibr router in your PC/Laptop via LAN then when status connected open your favorite browser then type this IP address 192.168.1.1 press endter and you will redirect to login page.
There are two default user accounts in pldt routers. The "admin" and the "adminpldt" user account. The admin account is the basic user account which you can access basic settings, and the adminpldt is account where you can access your full router settings.
User Name: adminpldt
2. Go to Management -> User Account
3. From the list, select the user you want to change the password. Type the new password, and confirm password for that user then click the apply button.
4. For changing the password for "adminpldt" user account. Go to Management -> Maintenance Account, type the New Password then Confirm Password, then click Apply button.