Disconnected in 2 seconds???

Well, uh... have you tried Google?

If not, the you should be ashamed.

If so... well, you're gonna have to reinstall.

just delete the nexon ending banner its useless
it pisses me off everytime i see it
run the hack shield updater
should be found here "C:\Nexon\Combat Arms\HShield"
its called "HSUpdate"

well thats wha happened to me did it say a hacking tool has been found if it does go into your combat arms folder then delete the endidnf banner that should work thank me

Try do what is says and remove the file (of course back it up first).

Try googling the issue,

Sounds like you've tried everything. Now your only option is to resort to prayer i'm afraid.

dude just re-install it