Error after Korean S4 Client loading

[Freestylerer]

The message says:

인증서버와의 연결이 실패아였습니다. (에러코드 : 7942 )

translated with Google it says:

Oh, this failure was a connection with the authentication server. (Error code: 7942)

It appears always when i start Korean s4 and when i press the button it closes and i want a solution, if someone know how to solve this problem i would be very grateful
thank you for reading this post

[Ᵽoppei]

try if u can close it with left klick+esc

[[B]urning[S]tar]

here in germany we youst had to write the nickname instead of: lol123 -> lOl123
it means just wirte something of the nickname big sang the rest small maybe it works if yes ples press thx

[Freestylerer]

when i left click and press esc, it closes but reappears
I tried changing lowercase to uppercase and don't work
but thank you

[xXShadowRunnerXx]

Take some Webguard off... and the Firewall, too~!

[Freestylerer]

Originally Posted by xXShadowRunnerXx

Take some Webguard off... and the Firewall, too~!

Thank you for help with my problem, the problem was the firewall of the antivirus installed in my computer, now i can play Korean S4 League with no problem

And thank you for everyone that read this post and reply

Now this Thread can be closed