Not really sure what the problem is. I never used to get in to war until i realised that you had to move around. Since i started moving around, i've never failed to get into war (but then again, i haven't played for a good few months). But even during the most busy times on dies when more people didn't get in that people who did i always got in. And i don't have a super fast PC or a great net connection..
Not sure really :/