unable to conet to login server

every time i try o enter is says the same "we are unable to connect to the login server due to a server check, a firewall block or other network issue. Please check the maplestory homepage for ongoing server checks as well your firewall setting."
i have try:

> re installing
>turn off the looback(i dont have loopback)
>bat file
>add to exception on firewall even disable the firewall
>disable my avg antivirus

still the same msg pop up someone can help me plz i payed before so i don't now what is the problem.

Did you download the updated client (not the bat fiile)? it comes with updated files and an updated client. Extract the updated files into your MapleStory folder, and make sure you move and replace for all of them. Then, open up the updated Redirector.ini in your MapleStory Folder, and change the last number in the IP address to 4. Hope this helps!

Did you change the IP Thingy.

1.Find Redirector.ini in your D. ChaosMS folder
2.open it and change the last digit from '2' to '5'
3.save it.
4.ENJOY!