Your Fireteam has changed disconnect

Every game I have played for the last two days. I get disconnected with the error message “Your Fireteam has changed” this will probably ruin my stats. I play ware zone firefight and Arena. This is so frustrating. I have been on Twitter seeking some help with this and have been told to power cycle my console which didn’t fix It. And I have tried switching off my modem which didn’t fix It either. Help