Account login impossible

[aya]

Hello,
I have problem loging my account, when I type login name and psw and click confirm, I get always kicked back to login and there is message: System error in the bottom line of initial game screen.
I tried change my pasword, but still its impossible to login with new password too. My girfriend account can be logged on this pc normally, but not the mine account. What is wrong?
Thank you for advices!

[Arcain]

Login on website and change ip filter (set ip option).

[aya]

Thank you very much, i forget that I already set ip filter long time ago and now  i´m logging from different place.
This solved my problem. Thanks a lot!