Banned someone, but it doesn't solve the problem at all!

[TheLastSuperman]

Install this, yes it does work with 4.x.

https://vborg.vbsupport.ru/showthread.php?t=183268

Do not tell your members about it though otherwise he/she may view the post before creating a new account and simply know to delete cookies before attempting the next registration.

Using this mod you should be alerted when they signup a new account .

• Does it have false-positives? Yes but rarely.
• When would this not work well? In situations like dorm rooms and such where a universal computer is used and more than one person know about and use your site from said pc.
• This will not ban the member, it will alert you then you can review and take the action you deem is required.