The Sagemcom Fast 3864V2 is a router provided by Optus, a telecommunications company in Australia. It is designed to provide high-speed internet connection to its users. It features a built-in ADSL2+ modem, four Ethernet ports, a USB port, and supports both 2.4 GHz and 5 GHz Wi-Fi frequencies. The router also comes with a range of security features and parental controls to ensure safe and secure internet usage.

The Fast 3864V2 Optus is a router manufactured by the company Sagemcom that allows multiple devices to connect to a network and communicate with each other. It works by receiving data packets from devices and forwarding them to their intended destination. The router is assigned a unique IP address 192.168.0.1, which serves as its identifier on the network.

To access the router's settings and configure its functions, users can log in using a web browser and their and . Once logged in, users can customize various settings such as network name, password, and security protocols. They can also set up parental controls, prioritize bandwidth usage, and monitor network activity.