What is the primary advantage of using a wireless LAN controller in a network?

Using a wireless LAN controller primarily streamlines the management of access points within a network. This centralized approach allows network administrators to configure, manage, and monitor multiple access points from a single interface, significantly reducing complexity and improving efficiency in network management. Through the controller, settings can be propagated across all associated access points quickly and consistently, ensuring that policies such as security and performance configurations are uniformly applied.

In addition to simplifying management tasks, this centralized control facilitates real-time monitoring and troubleshooting. It allows for seamless updates and maintenance of access points, leading to a more stable and reliable wireless network. This proactive management capability is essential in environments where maintaining consistent service levels and quickly resolving issues is crucial.

While reducing cabling needs, extending range, and minimizing power consumption may be benefits in certain contexts, they do not address the primary function of a wireless LAN controller, which focuses on management efficiency rather than physical infrastructure, signal reach, or energy usage.