This has been an issue since the game came out, and all I've ever found is threads about people trying to come up with ways to fix it. Some days I get servers when I try to play MP, others no servers pop up. Or just a few pop up. NOTHING DIFFERENT on either days. And there's even a thread about the problem being resolved. IT ISN'T FIXED!! I've done every one of these fixes, and it doesn't do SQUAT!
It's just totally random. I've reinstalled, I've loaded a single player game, I've done it all, and now I'D LIKE YOU TO FIX IT!!!!!