iam using voucher authentication first problem iam facing some device the mac address changed so i need to generate new voucher .

2nd problem some client they are changing the device same thing need to generate new voucher .

3rd  for example if i disconnect the voucher and i need to reconnect there is one option extend time but the problem the extend it will be after main date of expired means 

example :

start date 1-1-2021 expired 7-1-2021 this one week voucher if i extend without  disconnect for one day no issue its will be 8-1-2021

if i disconnect the voucher then i extend time its will be 8-1-2021 i think should be the the date i start  means i disconnect on 2-1-2021 and agine   i need to extend time for one day

so should expired date on 3-1-2021 but id will be on 8-1-2021.

for first and 2nd issue iam using other controller from zyxel uag4100 they have one option logout for the device its really helpful so if  tplink add this feature it will be helpful