In my country Singapore, most of the people are using SingNet internet service provider (I'm one of the user).
Whenever i reset my modem, my connection will reassign a new IP. Example: previous IP is 202.112.113.114 and after reset it will assign 202.115.116.117.
Which mean 202.112.113.114 will be use by other user and now what IP i'm using is also used by other users, so i had lot of hard time on this too.
Overall, i have the most banned within a month @ olebux (5 Time Banned). LOL