User warnings for IP 220 245 178 137 Just thought I should inform you that this IP address is an ISP proxy server in Australia there are several ban warnings posted under User Talk for it The ISP does give each user a directly internet addressable IP but they are dynamically allocated IP is DHCP assigned at login however the subnet does remain the same for a given user as far as I can tell If possible you may want to switch to x x x 0 24 subnet bans behind the proxy using HTTP FORWARDED FOR X to get the range