Im having exactly the same problem, When joining a match getting about 3 sometimes 4 connection error symbols and the screen dims. As they go away the screen birghtens up to the usual screen rez. Game then plays fine with sometimes the odd connection error symbol popping up and then going away Only started to happen this season. Appears to be yet another bug as nothing has changed on my side of things and I have a great Internet connection. Would be good if we could get a response from EA regarding this :-)
UPDATE: I set all my video settings to low and this seems to have sorted out the problem slightly. The screen does not dim anymore but i still get a random packet lose symbol just before starting a game. Im on PC.
UPDATE: Still happening with settings on low. Seems to be a problem that just comes and goes. Just wondering if its something to do with playing with people who are outwith a decent server ping status.
The signs I get are attached
