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System diagnostics tool LCS error

Posted on by 35

I have installed "System diagnostics" tool on the AOS server machine and made all required pre-configuration tasks, but the tool is unable to connect with the LCS web-service. (I have followed all the installation steps provided by Microsoft https://docs.microsoft.com/en-us/dynamics365/fin-ops-core/dev-itpro/lifecycle-services/ax-2012/install-run-system-diagnostics-lcs   )

The discovering the AX environment step works fine. The problem occurs during the “Upload environment” step.

Horis_5F00_3-_2D00_-Copy.png

Here is the error from event log: "Web Service Call Failed: An error occurred while making the HTTP request to diagservice.lcs.dynamics.com/externalservices.svc. This could be due to the fact that the server certificate is not configured properly with HTTP.SYS in the HTTPS case. This could also be caused by a mismatch of the security binding between the client and the server."

Any help would be appreciated.

  • TIP1974 Profile Picture
    TIP1974 35 on at
    RE: System diagnostics tool LCS error
    [quote user="Anup Shah"]

    Please ensure the system can use TLS 1.2 to connect to the LCS web services.

    https://docs.microsoft.com/en-us/mem/configmgr/core/plan-design/security/enable-tls-1-2-client

    [/quote]

    Hello,

    Thank you for your advice. Regarding this link Windows Server 2012 R2 natively supports TLS 1.2 for client-server communications over WinHTTP, but as I have verified in my case the value of the efaultSecureProtocols registry setting is empty. I'll follow this procedures to enable TLS 1.2 on client.

  • Verified answer
    RE: System diagnostics tool LCS error

    Please ensure the system can use TLS 1.2 to connect to the LCS web services.

    https://docs.microsoft.com/en-us/mem/configmgr/core/plan-design/security/enable-tls-1-2-client

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