"the caller was not authenticated by the service"

[ShrutiTaywade]

Error Message : 
"Could not connect to 'Default Connection'. The caller was not authenticated by the service."

Configurations on App Server:
Authentication Mode: Multi authentication
Connection Mode: WCF Message Encryption with Windows Authentication

Scenario: 
The above error is encountered after providing connection details and clicking on 'Test Connection' on a machine with interactive client/runtime resource. Please note that the error us only encountered when if I login to VM with a non domain account. If I login to VM with a domain account, it works fine.

Both client and server are in same domain.

Thanks,
Shruti

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Shruti Taywade
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[Tejaskumar_Darji]

Thank you

[Tejaskumar_Darji]

The default server connection mode (WCF: SOAP with Message Encryption & Windows Authentication) authenticates using Windows / Active Directory.

If the remote machine and the server are in different domains or do not share an Active Directory that may be the cause.

WCF: Insecure connection mode does not validate server identity using active directory -- so it will work with this option.

Make sure to select the same Connection Mode in app server and the remote machine (RR/IC) to make it work.

Note: Consider any security risks with the IT team.