Error "The issuer certificate...could not be found" Signing In to Tableau Online

Published: 14 May 2015
Last Modified Date: 05 Jul 2016


After you upgrade to Mac OS X 10.10.3, and then try to open a data source published to Tableau Online or publish a workbook/data source to Tableau Online, the following error might occur:

Cannot connect to Tableau Server. Please check the server name and port and try again.
The issuer certificate of a locally looked up certificate could not be found
The root CA certificate is not trusted for this purpose


  • Tableau Online
  • Mac OS X Yosemite 10.10.3
  • Tableau Desktop 8.2.5 and later versions


Upgrade to Tableau Desktop 8.2.11, 8.3.6, or 9.0.2 and later versions. For more information, see Upgrading Tableau Desktop.


Mac OS X 10.10.3 upgrade removed the Equifax Security Certificate Authority from the trusted system root store. 
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