Problem with spammer

[Garik Vardgesyan]

I have a problem with one or two spam user who continuing to register to my sites. The anti-spam plugin actually does not help to prevent.
Please advise how I can ban this user. I know their IP addresses. Maybe I need to do something with htaccess file. Please advise.

[Steffen Buschkemper]

Hi Garik,

open your .htaccess file and paste this code

Only registered members can view the code.

XX.XX.XXX.XX1 and XX.XX.XXX.XX2 you must change with the spammer IPs you have.

Best regards
Steffen