"OUT OF SYNC"

I get disconnected so often in Deathmatch that I usually play Blitz. It usually happens about 10-15 minutes in, that friends and I get booted from the game with a message letting us know that we are out of sync with the server. Our connection is fine and we remain in a chat party. This rarely happens in Blitz but happens all the time in Deathmatch. Why hasn’t this been fixed? Is 343 aware of this issue???