[grand.Theft.Otto]

I have a ban evader that keeps connecting to my server. My anti-cheat had banned the original player first. After that, he started to ban evade. After he manages to evade, he changes his name and ip but I still know it is the same player because of his actions and what he does in-game. I've manually banned him, my anticheat has banned him, I've range banned him but he just keeps evading with new ip's and names.

How can I solve this problem ?