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This article explains how to resolve the issue of error when importing ARL library.


ARL import may with the following error.

ManageSoft.Compliance.Logic.Core.API.ImportRecognitionDownloadException: Failed to download the file '' to 'C:\Users\dummy\AppData\Local\Temp\2\'. ---> System.Net.WebException: The underlying connection was closed: Could not establish trust relationship for the SSL/TLS secure channel. ---> System.Security.Authentication.AuthenticationException: The remote certificate is invalid according to the validation procedure.


This error occurs when one or more of upper certificates are not valid.
The upper certificates are usually updated by Windows update automatically, but it may be blocked or pending for customer company's policy. In that case, customer needs to update certificate manually.

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1. Please access to "" and open "View certificates".
2. Check all certificates under the "Certification Path" are valid.
3. If not, please download the certificate from the certification broker and apply.

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Related KB Articles

Please refer to the following article regarding how to download the root certificates that are used to verify the signed Flexera Content library files: Digital Signature upgrade for loading Content libraries

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Last update:
‎Nov 23, 2020 05:21 AM
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