Agile Central - Excel: Error connecting to Agile Central

Document ID : KB000096533
Last Modified Date : 16/05/2018
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When trying to connect to CA Agile Central using the Add-in for Excel version 2.43 or lower, the user is getting the following error even though the username and password are correct: 
Error connecting to CA Agile Central:
The underlying connection was closed: An unexpected error occurred on a send.

User-added image
The version of the Add-in for Excel is outdated and is not compatible with TLS 1.2.  Learn more about the deprecation of older versions of TLS at 
Download and install the most recent version of the Add-in for Excel at

Version 2.44 and above are compatible with TLS 1.2. 

Additional Information:
Also see Agile Central - Add-in to Excel: SSL Error connecting to CA Agile Central