To add to this - I noticed this post only mentions crashes on PC. I have been crashing on Xbox rather frequently for the past 5 days. It happens at random, I get the red clock/timer icon in the top right of my screen and the game freezes. Then I am D/Ced from the match and party chat. It is getting extremely frustrating as this happens roughly every 3 to 4 matches.
Also I have no major connection issues with any other games I play or other online activities.... And I was able to play the game just fine with no crashes for the first several days after release.
That sounds like bandwidth - are you on wifi by any chance? If so, I'd highly recommend going wired ethernet.