Hardware Ban?

[Robertoasd]

Hello, I'm running a bigger retro, and recently we're had some guys come online, that we really dont want to be online. Is there a way to ban their Mac adress / their Hardware ID?
Ask me, if u need more info.

 

[Ka3]

Hello, I'm running a bigger retro, and recently we're had some guys come online, that we really dont want to be online. Is there a way to ban their Mac adress / their Hardware ID?
Ask me/PM me, if u need more info.

Yes there is a way actually

 

[Robertoasd]

Yes there is a way actually

How do we do it? Any suggests?