What to do in Maplestory error code 40?

Answer 1

I got error code 40- 21- 30 and no internet connection, Norton was the problem. I had an expired norton anti virus and sometimes active nortons will mess it up too. Also check your internet explorer tools-internet options-connections tab- lan settings and make sure none are checked off unless you have a server at your house. Also use a Norton removal tool, works a lot better and you can use it in safe mode if needed. Good luck.