Hi, when I try and play call of duty warzone I cannot connect or get past training. It’s checks for the update then I get an error message. I’ve tried a few things like switching everything off ... including Xbox and router and I’ve also reinstalled the game but no luck. I’ve heard it’s a common thing .... but I recently read on a call of duty forum it’s to do with ISP?? Not sure what that is but would like some help on how to resolve. Do I need a new router? App louis 👍🏽