Trouble joining in campaign and custom games

For nearly 3 hours i tried to jump into a lobby with my brother to play through campaign and just to check we also couldnt join into a custom game either which raised red flags.
We tried to power cycle the system (no Dice)
we tried closing the game and retrying(no Dice)
I just would like a confirmation from somebody who knows what they are talking about to respond with an answer

343 are fixing that.Their is something wrong with the servers.

Thank you for a speedy response

Yeah my friend and I have been trying for the past 2 days and No dice so I’m right there with you

So I have friends who are all in a party playing custom games and I’m the only one who can’t join. NAT is open. What gives?