Tableau Desktop Receiving A Ssl Peer Certificate Error When Connecting To Tableau Server

Published: 26 Mar 2021
Last Modified Date: 08 Jul 2022


When attempting to connect to Tableau Server from Tableau Desktop we are getting the following error

Unable to complete action
Cannot connect to Tableau Server. Please check the server name and port and try again.
Error Code: 9F4C5638
Internet communication error: SSL peer certificate or SSH remote key was not OK


  • Tableau Desktop
  • Windows 10
  • Text Files


The same Root CA Cert was both in the Intermediate Store and the Root CA Store and that was causing the issue.

Check for additional RootCAs found in the certificate files within Windows, and verify which certificates are the required RootCA with your Network Administrator. 

Additional Information

An error found from the Tableau Desktop log files will find something similar to:

CryptoAPI nonfatal certificate verification error: '/C=US/ST=California/L=Calabasas/O=Harbor Freight Tools USA, Inc./' error code 1000040"}

This error can also occur when using ECC key file for configuring SSL
SSL Errors When Connecting to Tableau Server Using ECC Key
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