SSRS 2019 error The underlying connection was closed: Could not establish trust relationship for the SSL/TLS secure channel

Jitender Dudhiyani 1 Reputation point
2022-09-08T09:29:17.657+00:00

Hello,

SQL 2019 and SSRS 2019 are installed on the same server and Reports are working fine without any issues.

A local exe application is erroring out with the below message while connecting to SSRS 2019.
"The underlying connection was closed: Could not establish trust relationship for the SSL/TLS secure channel"

The same exe application can connect and works fine with SSRS 2016.

SSRS connection string which is mentioned application config file is
http://servername/ReportServer/ReportService2010.asmx

Please help.

SQL Server Reporting Services
SQL Server Reporting Services
A SQL Server technology that supports the creation, management, and delivery of both traditional, paper-oriented reports and interactive, web-based reports.
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  1. AniyaTang-MSFT 3,446 Reputation points Microsoft Vendor
    2022-09-09T07:51:20.903+00:00

    Hi @Jitender Dudhiyani
    Can you tell me more details? TLS connections are a complex issue, and there can be multiple reasons for this. Has your certificate expired? Are your certificates deployed to IIS? Are your TLS connections configured correctly? What do you mean by local exe application?
    To check if SSRS is configured correctly for TLS connection, you can refer to this link: configure-ssl-connections-on-a-native-mode-report-server.
    Best regards,
    Aniya