Check if IP address is in use, deny registration

[Jennifer2010]

Thank you for the responses. I posted a mod request in the paid request forum.

I realize user's ip's change - but this is strictly for registration, and 95% of our users IP's, dynamic or not, are not shared with other users - making this a viable solution to prevent multiple registrations from the same user.

My IP is static and I'd say half of the users on our forum have static IP's. Mainly from US customers on Comcast/Charter or other cable connections.