DayZ is no different to any other online game, in that every now and again, the developers need to take servers offline to release updates and perform maintenance.
If you're experiencing issues with the game, it's possible the servers are running into difficulty.
The obvious exception is that it might be pre-planned maintenance from the dev team at Bohemia Interactive.
Either way, there might not be anything to do except wait it out until the servers come back offline.
The question is, are the DayZ servers down for maintenance today?
DayZ Server Status Latest News
On September 16 the team is rolling out another update for the game on Xbox, albeit for just their experimental servers.
That means some portion of players will be unable to enjoy the game whilst the game is offline.
The full details of the server downtime can be found just below:
Date: 16 September, 2021
Start time: 13:00 UTC / 14:00 CEST
End time: 14:00 UTC / 15:00 CEST
Maintenance window duration: approx. one hour.
Following the server maintenance DayZ should release the latest experimental update for Xbox, which is DayZ Xbox Experimental 1.14 Update 3.
Follow the link for the latest DayZ patch notes