My Friend is having tons of trouble trying to access Maple. Help needed badly.

I posted for him here because he does not have a sp account. But here's the issue:

My good friend has not been able to get on the game lately. He says he always gets "Cannot connect to the server due to a firewall or servercheck, would you like to check the website" after going through gamelauncher. Is this a glitch? Have other people had the same issue lately? What can be done to fix this? Thanks for the help