A Wi-Fi Controller is a centralized device or software that manages and controls multiple wireless access points within a network. It simplifies the deployment, management, and monitoring of Wi-Fi networks by providing a single interface for configuration and administration.

These controllers are essential for optimizing network performance, ensuring security, and enabling seamless roaming across access points. They are widely used in enterprises, educational institutions, and public venues where robust and manageable Wi-Fi networks are required.

Leading manufacturers like Cisco, Aruba, and Ruckus offer advanced Wi-Fi controllers with features such as load balancing, bandwidth management, and real-time analytics, ensuring efficient and reliable wireless connectivity.