# Satisfactory Server Won't Start – Dedicated Server & Port 7777

Satisfactory dedicated server won't start or connection failed? Port 7777, server config, Steam & multiplayer – troubleshooting.

**Quick answer:** Fix Satisfactory dedicated server with **SteamCMD update**, **port 7777 UDP** and correct **ServerSettings.ini**.

**If you landed here:** Satisfactory server won't start, crashes after patch or multiplayer connection fails.

## Related

- [Set up Satisfactory](/en/gameserver/satisfactory/installation)
- [Optimize performance](/en/gameserver/satisfactory/optimize)