Hi all

I'm looking for a little clarification on something:

If I go into ip/dhcp-server/leases and make an entry static,
an option appears to "block access" for that users mac address.

If i am understanding correctly, this will prevent the user from renewing
or getting an ip when their lease expires which essentially kicks them out of the network.

But it doesn't actually take effect until either the lease expires, or you reboot the router.

Is there another way to make this take effect without adding a firewall rule to drop anything from their ip?

Thanks

DHCP is not an ongoing process - it happens only when an IP is required or must be renewed. Therefore any actions such as block will only take place at the time the DHCP request is received.
To block a client, you must add a firewall rule to block either its IP or MAC.