Subject: Steam Initialization Error on Sapiens Instance – AMP / SteamCMD Issue

Technical Support
1

Hello,

I’m experiencing an issue with an AMP instance configured to run a Sapiens dedicated server (App ID: 2886350). The SteamCMD installation completes successfully, but when the server starts, it fails to initialize Steam.

:red_circle: Error message from AMP logs:

vbnet

CopierModifier

ERROR:Steam server init failed:1. Perhaps the ports 28015 or 28016 are in use?
Error reported:Could not determine Steam client install directory.
WARNING:Failed to initialize Steam

:mag_right: Observed behavior:

  • SteamCMD runs properly and completes the app_update with no issues.
  • The server launches in LAN mode, but fails to initialize as a public Steam server.
  • Two main errors are being logged:
    1. "Steam server init failed" – possibly a port conflict
    2. "Could not determine Steam client install directory" – possibly a SteamCMD configuration issue

:white_check_mark: What I’ve already checked:

  • Ports 28015 and 28016 are assigned to this AMP instance, and no other process is using them.
  • SteamCMD is installed correctly (the game installs and validates without error).
  • The server runs fine locally, but fails to register with Steam for public access.

:question: My question:

How can I resolve this Steam initialization error in AMP?

  • Is there a manual configuration required for AMP to properly detect the SteamCMD install directory?
  • Is there a specific AMP setting I need to enable for proper Steam server integration?
  • Is this a known issue with App ID 2886350 or the Sapiens dedicated server?

Thank you in advance for your help.

Best regards,
Hydrocut

OS Windows
Platform Windows Server 2019
System Type x86_64
Hardware Platform
CPU Model Intel(R) Xeon(R) CPU E5-2667 v4 @ 3.20GHz
CPU Layout 2S/8C/16T
Installed RAM 130942
Virtualization None
Network Mode Standard
Module ADSModule
Module Application Application Deployment
Loaded Plugins FileManagerPlugin, EmailSenderPlugin, WebRequestPlugin, LocalFileBackupPlugin, CommonCorePlugin, AnalyticsPlugin
Application Name AMPService
Application Version 2.6.1.0
Codename Phobos
Tools Version 2.6.0.6
Release Stream Mainline
Build Spec Release
Build Date 20/03/2025 20:51
2

A fix for this will be added shortly

1 Like
3

Follow section 4 here to update the instance, then manage the instance and update the server as well

1 Like
4

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