# Getting EOS working on 5.6 Blueprint project

**URL:** <https://forums.unrealengine.com/t/getting-eos-working-on-5-6-blueprint-project/2671924>\
**Category:** Plugins\
**Tags:** unreal-engine, EOS, Blueprint, question\
**Created:** [November 5, 2025, 10:39am UTC](https://forums.unrealengine.com/t/getting-eos-working-on-5-6-blueprint-project/2671924 "2025-11-05T10:39:45Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![q3rt3qr](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@q3rt3qr](https://forums.unrealengine.com/u/q3rt3qr)\
**Post date:** [November 5, 2025, 10:39am UTC](https://forums.unrealengine.com/t/getting-eos-working-on-5-6-blueprint-project/2671924/1 "2025-11-05T10:39:45Z")

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Hi all,

I couldn’t find anything in here from skimming over.

I have been trying to get EOS working for around 2 weeks or so, but still no joy.

I am trying through Dev Auth Tool, port 9999.

| Plugin | Set To |
| --- | --- |
| **Online Subsystem EOS** | **DISABLE** |
| **Online Services EOS** | **ENABLE** |
| **Online Services EOS (Game Services)** | ENABLE |
| **Online Services Epic Common** | ENABLE |
| **Online Services** | ENABLE |
| **OnlineSubsystemNull** | DISABLE |

I have a blueprint, but just tried deleting the External Login UI as that may be for old versions of Blueprint, but couldn’t find anything similar to this online suggestion:

OnClicked(Button\_Login)  
↓  
Get Owning Player → Get Player Controller Index (index 0)  
↓ (as Local User ID input)  
Get Online Services  
↓  
Get Identity Interface  
↓  
Login (Identity)  
Local User Id: 0  
Credentials Type: “developer”  
Credentials Id: “AllHallowsLocalDev”  
Credentials Token: “” (leave blank)

I have my DefaultEngine.ini

[/Script/OnlineServices.OnlineServicesSubsystemConfig]

DefaultServices=Epic

[OnlineServices]

DefaultServices=Epic

[/Script/OnlineServicesEOS.OnlineServicesEOSSettings]

ProductId=xxx

ClientId=xxx

ClientSecret=xxx

SandboxId=xxx

DeploymentId=xxx

ArtifactName=xxx

bUseEAS=true

bUseEOSConnect=true

bUseNewLoginFlow=true

; ---- Dev Auth Mode (only for testing) ----

[/Script/OnlineServicesEOS.EOSAuthConfig]

LoginMode=Developer

DeveloperAuthHost=localhost:9999

DeveloperAuthCredentialName=xxx

But still no joy and none the wiser. I can get login failed, but there is always some sort of subsystem failure, whatever I try, eg. LogScript: Warning: Script Msg: ShowLoginUI - Invalid or uninitialized OnlineSubsystem

Any hlep would be greatly appreciated. Each time it feels like I’m getting close, I just seem to get stuck more!

Thank you