Error "Unable to connect to the data source (...) SSL connect error" Opening Google BigQuery Workbook

Published: 25 May 2017
Last Modified Date: 27 Apr 2018


When accessing a workbook on Tableau Server connected to Google BigQuery, it takes a long time to load and the following error occurs:

Unable to connect to the data source. Try connecting again. If the problem persists, disconnect from the data source and contact the data source owner. Internet communication error: SSL connect error ( Unable to connect to server “”. Check that the server is running and that you have access privileges to the requested database.



  • Tableau Server
  • Google BigQuery


As a troubleshooting step, check whether you can access "" on the affected computer using an internet browser.
Work with your internal IT to ensure that your firewall or antivirus allows communication to  "".


Communication with Google BigQuery blocked by firewall or antivirus.
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