DayZ server won't start – first steps?

Read panel logs and script.log. Common: mod version mismatch after update, bad serverDZ.cfg line, port 2302–2305 blocked.

Mod mismatch / key verification failed?

Update all mods via Steam Workshop/SteamCMD. Match mod list in serverDZ.cfg with workshop IDs. Remove mods one by one to test.

2302 UDP (game), 2303–2305 UDP (additional). BattEye needs open UDP ports. Open all in panel + firewall.

Quick answer: DayZ won't start: read logs, update mods, check serverDZ.cfg and open ports 2302–2305 UDP.

If you landed here: Server crashes on start, restart loop in panel or BattEye/mod errors in logs.

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