Do I have to buy modern warfare for PC and PS4? If you mean to play it💶 on both systems, yes. If you mean to play it with friends from both systems, no. Buying it on PC💶 will let you play it on your account on the PC.

Another common reason for💶 the Call of Duty Modern Warfare Multiplayer not working error is the corrupted cache data. In this case, you can💶 try clearing the cache files on your PC or console to fix the issue.