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Error - Could not establish trust relationship for SSL/TLS Secure

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Posted on by 270

Dear Friends,

I tried to register my email with Dynamics 365 for Finanace and Operations using Admin User Provisioning tool in Dynamics 365 VM and get below error:

The underlying connection was closed: Could not establish trust relationship for SSL/TLS Secure channel

2235.2020_2D00_07_2D00_28_5F00_16_2D00_32_2D00_28.jpg

Please your support to solve this issue.

Thanks

Yasser Mahmoud

  • SAADULLAH M Z Profile Picture
    SAADULLAH M Z 175 on at
    RE: Error - Could not establish trust relationship for SSL/TLS Secure

    Are you able to connect to DevOps in Visual Studio ? 

    Is this One Box VM downloaded from LCS ?

  • MDeeb Profile Picture
    MDeeb 74 on at
    RE: Error - Could not establish trust relationship for SSL/TLS Secure

    Hi Nikolaos,

    i have same issue on my local Dev.

    pastedimage1663579847121v1.png

    pastedimage1663579877365v2.png

  • Suggested answer
    nmaenpaa Profile Picture
    nmaenpaa 101,156 on at
    RE: Error - Could not establish trust relationship for SSL/TLS Secure

    I think that the article from George will not help since it's about On-premises D365FO systems (means the actual on-premises product that runs on top of Service Fabric, not to be mixed with a locally hosted devbox).

    Most likely some certificates on your dev system are expired.

    If it's a cloud hosted system, in LCS on the environment details go to Maintain - Rotate secrets - Rotate SSL certificates.

    Does it help?

    If not, please share more details about your system (local/in cloud? which D365FO version?).

  • Suggested answer
    George_D365 Profile Picture
    George_D365 on at
    RE: Error - Could not establish trust relationship for SSL/TLS Secure

    Hi Yasser Mahmoud,

    Kindly follow this documentation and let me know if it resolves your issue:

    docs.microsoft.com/.../troubleshoot-on-prem

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