I've read the FAQ, I've searched for other posts.
I've redownloaded the entire client, launcher, etc.
I think I'm missing maps though; but when I check my "Maps" folder I have a bunch of .xFC's. I can log in to the game fine. I can go into a game room fine. But then, when I press "Enter", it seems to load, I get a flash of the spawn point, and then I get the "You failed to send the correct heartbeat" error after being booted to the server selection page.
Anyone know a fix for this?