Wireless controllers, also known as the WLAN controllers, are responsible for managing the wireless access points in bulk. These controllers allow wireless devices to directly connect to the WLAN, which refers to the wireless network architecture. It is the centralized device within the network that remains located at the data center, to which the rest of the wireless Apps will remain either directly or indirectly connected. The wireless controller can take the bandwidth from the router and stretch it to fit your network requirements. Working just like an amplifier within a stereo system, this one can control the devices located farther away to connect with the network smoothly.