I have a couple of zone director 1200 in Smart Redundancy configuration and about 50 AP.
We would like to block a supected client from our wi-fi enviroment.
We have the mac address of it but after it leaved the wi-fi, we don't see it on active/non-active client list of ZD1200, for this I cannot block it from web interface. there is another way?
Globally blocking a client is only available from GUI and only when client is connected to the network.
Once you block the client from GUI, it is added to a global ACL which is set to deny all and you cannot modify it from CLI.
Here is a similar past discussion.