What happens when a client is blacklisted on the controller?

When a client is blacklisted on the controller, it effectively prevents that client from associating with any SSID managed by that controller. Blacklisting is a security measure used to deny access to specific devices, usually because they have exhibited undesirable behavior, such as attempting unauthorized access or violating network policies.

By stopping the client from associating with any SSID, the controller ensures that the blacklisted device cannot connect to the network infrastructure, thus protecting the network from potential threats or disruptions that the device may cause. This is crucial for maintaining the integrity and security of the network, as it eliminates the possibility of compromised devices gaining any level of network access.

This action is definitive, as it does not allow the blacklisted device to connect in any capacity, which is an essential aspect of network security protocols.