Excel Add-in 2.4.4: SSL Error connecting to CA Agile Central

Products

• CA Agile Central On Premise (Rally)
• CA Agile Central SaaS (Rally)

Issue/Introduction

With the deprecation of TLS 1.0 and 1.1, users of the Excel add-in may experience the following error:

Error connecting to CA Agile Central:
The request was aborted: Could not create SSL/TLS secure channel.

or 

Error connecting to CA Agile Central: 
The underlying connection was closed: An unexpected error occurred on a send

This is due to the WinHTTP protocol that Excel uses to communicate with our infrastructure to perform the query operations configured within the add-in.  

Environment

WinHTTP does not use strong security in its default configuration. 

Resolution

The solution is to upgrade to version 2.4.4.

https://techdocs.broadcom.com/us/en/ca-enterprise-software/agile-development-and-management/rally-platform-ca-agile-central/rally/integrating-with-rally/rally-integrations/rally-add-in-for-microsoft-excel-2010-and-2013/rally-add-in-for-excel-2010-and-2013-installation-and-user-guide/install-the-excel-add-in.html 

Additional Information

keywords: agile central, rally, excel, plugin, integration, adding users, create, creation, addin