Regardless of your version (legit or cracked), your router is likely the enemy. MKX uses specific ports that Windows Firewall or your ISP might throttle.

If you own the game on Steam but cannot connect, the "fix" is often simpler than downloading external files.

: Go to Online > Versus > Private Match and send an invitation through the Steam friends list.

Beyond the legal and ethical concerns, there are serious practical dangers.

Network lag can often be fixed by clearing your DNS. Open the Command Prompt (Admin) and type ipconfig /flushdns .