Cisco Linksys WRT400NL is a dual band 802.11n router delivering simultaneous 2.4 GHz and 5 GHz wireless for smooth HD streaming and online gaming. It features four Gigabit Ethernet LAN ports, a WAN port, and a USB port for shared storage and media serving. The router provides WPA/WPA2 security, guest access, parental controls, and an intuitive web-based setup. Compact design with external antennas improves coverage, making it a practical choice for small homes and offices.

The WRT400NL is a router manufactured by the company Cisco Linksys 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 192.168.1.1, 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 admin and admin. 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.