[Theory] Why we DC after 1 game
I believe that we DC because nexon has implemented some new kind of system that checks for attached hacks after each game, in an attempt to stop people from gaining EXP+GP from their matches. Another theory was that the hacks themselves are causing the DC, because I remember you used to get a hack detected message, you still do when running CheatEngine, which leads me to believe that not many hacks are patched, but the actual game has changed to reject said hacks.
Possibly, I think it's usually our systems