The Airlink 101 AR420W is a wireless router that supports 802.11g and 802.11b wireless standards. It features four LAN ports and one WAN port, and supports WEP, WPA, and WPA2 wireless security protocols. The router includes a built-in firewall and supports VPN pass-through for secure remote access. It also has a web-based configuration interface for easy setup and management. The AR420W is a reliable and affordable option for home and small office networking needs.

The AR420W is a router manufactured by the company Airlink 101 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 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.