web
You’re offline. This is a read only version of the page.
close
Skip to main content
Community site session details

Community site session details

Session Id :
Finance | Project Operations, Human Resources, ...
Suggested answer

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

(0) ShareShare
ReportReport
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

I have the same question (0)
  • SAADULLAH M Z Profile Picture
    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
    90 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
    101,160 Moderator 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
    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

Under review

Thank you for your reply! To ensure a great experience for everyone, your content is awaiting approval by our Community Managers. Please check back later.

Helpful resources

Quick Links

Responsible AI policies

As AI tools become more common, we’re introducing a Responsible AI Use…

Andrés Arias – Community Spotlight

We are honored to recognize Andrés Arias as our Community Spotlight honoree for…

Leaderboard > Finance | Project Operations, Human Resources, AX, GP, SL

#1
Sohaib Cheema Profile Picture

Sohaib Cheema 814 User Group Leader

#2
André Arnaud de Calavon Profile Picture

André Arnaud de Cal... 798 Super User 2025 Season 2

#3
CA Neeraj Kumar Profile Picture

CA Neeraj Kumar 622

Last 30 days Overall leaderboard

Product updates

Dynamics 365 release plans