If you can see the menus but get disconnected mid-match, the best "online fix" is opening your router ports. Mortal Kombat X performs best when these ports are open: 27014-27050 UDP: 3478, 4379-4380, 27000-27031 Step-by-Step Installation of an Online Patch
When Mortal Kombat X launched on PC in April 2015, it was a disaster. Plagued by optimization problems, missing features, and a broken online mode, the port was universally panned. While High Voltage Software was later replaced by QLOC to fix the game (resulting in the Mortal Kombat X: XL update), many players still struggle with online connectivity—especially those using older versions or, more commonly, cracked copies of the game. Mortal Kombat X Online Fix
: If the "Online" and "Story" buttons are red, the game might still be installing assets in the background. Official support from WB Games suggests waiting up to 90 minutes for the process to complete. If you can see the menus but get
While community patches are generally safe for the purpose of playing with friends, always be cautious. Download only from reputable community forums. Furthermore, using an online fix on official servers can occasionally result in a shadow-ban, so it is best used for or LAN emulation with people you know. Final Thoughts While High Voltage Software was later replaced by
: Download the Steamworks Fix (often labeled as RVTFiX or Online-Fix ). Installation : Copy all files from the fix folder.