how to delete device on wifi

[BITRUS]

pls, i use a spectranet modem and because of it default password people login to my device through the wifi.i have being kicking them out of connection but this time the list is full and i can't disable them any more. my question is this,how can i delete those device completely from my wifi network (device list)

 

[Someone Somewhere]

Well, firstly, change your password: http://www.tomshardware.com/forum/38111-43-find-change-wireless-security

You may be able to blacklist MAC addresses, but this is easy to get around.