Hi friend,
Yes, if we remove the lease, client will always gets the same ip,
here is the POC:
1. I have created a DHCP pool in the controller without any lease
2. I have connected two different clients ovet the same SSID.
3. then I have cleared the bindings and users from the controller.
4. I have re connected in the reverse order.
Clients got the same IP even if I change the order of the association.
Hence it is prooved that, when there is no lease configured, clients will get the same IP.
Hope got some clarity,
Please feel free for any further help on this.