go to Php My Admin Page using RADIUS account credential
app.gotapway.com/dblog
username: radius
password: *get password from Chee How or Izwan*
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1. go to radius > tables > search 'radacct'
*calledstationid is the AP MAC Address, while the callingstationid is the device MAC Address
2. use SQL terminal
3. write the following line
Select * FROM radacct WHERE callingstationid LIKE "device MAC ADDRESS"
*capture the session first just in case client require the logs.
* incase if client request for reset session, you may proceed to step #4, else you're DONE!
4. select the rows and delete.
DONE !
Link on how to do it: https://watch.screencastify.com/v/httlae1W7jiV6LZkIhtD