Hi there. It’s that time again when we need to update our SSL Certs on our On-Prem Server. We managed to get IIS/ADFS updated OK. Now challenged getting the Hybrid Connector updated. We are using details from this article: https://docs.microsoft.com/en-us/previous-versions/dynamicscrm-2016/administering-dynamics-365/mt703269(v=crm.8) After running this command: $CertificateScriptWithCommand = “.CertificateReconfiguration.ps1 -certificateFile C:CRMWildCardCertificate.pfx -password XX -updateCrm -certificateType S2STokenIssuer -serviceAccount XX -storeFindType FindBySubjectDistinguishedName” Invoke-Expression -command $CertificateScriptWithCommand We get the following error: Set-CrmCertificate : The underlying connection was closed: Could not establish trust relationship for the SSL/TLS secure channel. At C:Program FilesMicrosoft Dynamics CRMtoolsCertificateReconfiguration.ps1:198 char:3 + Set-CrmCertificate -CertificateType $certificateType -DataFil … + ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + CategoryInfo : InvalidArgument: (Microsoft.Crm.P…rtificateCmdlet:SetCrmCertificateCmdlet) [Set-CrmCer tificate], WebException + FullyQualifiedErrorId : CRM Deployment Cmdlet Error,Microsoft.Crm.PowerShell.SetCrmCertificateCmdlet [11/04/2021 19:36:15] The underlying connection was closed: Could not establish trust relationship for the SSL/TLS secure channel. [11/04/2021 19:36:15] Fail to configure Microsoft Dynamics CRM to use the specifed certificate. Googling doesn’t give me too many results – we’re running on a 2016 Server box. Anyone seen this before or have any recommendations? Thanks