Error "Server returned nothing" Connecting to Published Data Sources

Published: 09 Jun 2014
Last Modified Date: 22 Jan 2019


When you try to connect to a published data source through a load balancer, the following error might occur:
Internet communication error: Server returned nothing (no headers, no data) (<load balancer URL>).

Unable to connect to the server "<load balancer URL>". Check that the server is running and that you have access privileges to the requested database.


  • Tableau Server
  • Tableau Desktop
  • Load balancer


Enable the X-Forwarded-ProtoX-Forwarded-For, and X-Forwarded-Host headers.
Note: The X-Forwarded-For header must include the IP addresses of any proxy servers that are traversed between the client and the server.
For more information, see Cannot Connect to Tableau Server through SSL Proxy.
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