Sorry, I have to let this out. First EA releases Simcity which is still unplayable - a classic remake! Then they release Battlefield 4 - also a classic franchise!
So today I got this error message for the 30th time - and that was what it took to have me write this post.
“ERROR Game disconnected: your connection to the server timed out.”
In short:
EA: You are sh*tting on legacies that are holy to a lot of gamers. I hope the franchises that I truly care about may fall out of your unworthy hands and onto a better publisher!
*for each time you get an error message post it below
ERROR
Game disconnected: could not join server.
I’ll start.
Completely agree. I have been having a shitload of trouble with the game. I really enjoy BF4; I feel it is a lot better than BF3 ever was. BUT… I can rarely play it. I have been attempting to get in a game for the last half hour. I’m still not in. Same error you’re getting. And this morning, I was playing for roughly 2.5 hours, except only about 30 minutes of that time was actually spent in-game. The rest was spent attempting to connect to a server.
It sounds like you have even more trouble than me 
I’m on PC - you?
I’m on PC, too. Updating PunkBuster helped, but not much. It got me in a game right after updating, but didn’t help after I left that server.