the internet connection is not the problem.
when i started elements i used to turn off my internet so a CPU played instead of a human. CPU's are easier to defeat. after CPU started playing i turned on my internet connection.
and you dont need a connection for elements, only for logging in and starting pvp/arena. you can log in at home, take your laptop to the woods and play there for a while against AI3/FG, but keep your window opened!, otherwise it wont save , you need internet to save your update