ip filter has some issues when we are talking for dynamic IP....
for example if my ip was: 12.34.56.789 (dynamic) and the first 2 parts was stable. i should put on filter 12.34.*
and it didnt work.. so i had to put full IP so it would be 100% protected...
and everytime I restarted pc or modem i had to go to forum to put new full IP.
for me its working now.. but sometimes it getting bugged for some reason....
i;m guessing you don't use ip filter for site or you're resetting the filter every day. if it's the first one u're not protected at all. someone who knows your password can simply log in on site and add their ip as well.
also, try a filter like this: 12.34.*.*
i have the filter set that way and it works just fine. both on site and in game