I have gamepass.
But i bought the game when it launched.

I have tried 3 different consoles now.
The original Xbox one 2013
The xbox one from 2015
The one S.
No changes.
I will try a wired connection soon.
No hope.

Got in 3 times in a row today.
Had to leave server.
Cannot join anything now!

I have also had this same issue for atleast the last 2 months.
I have deleted then re-installed the game twice with no changes.
I once “moved” Dayz from my internal HDD to an external SSD
Which seemed to fix the issue briefly. Ive tried moving it several times since with no change.
I might get into a server every 1/100 attempts.
The game is unplayable.
Im glad to have found someone with the same issue.
I would literally pay for the game again just to resolve this issue!