Red Hat Satellite 6 throws the exception: "ERF12-5356 [ProxyAPI::ProxyException]: Unable to get PuppetCA certificates"

Solution Verified - Updated -


  • When navigating to Satellite WEBUI -> Infrastructure -> Capsules -> Action -> Certificates gets below error message:
 Operation FAILED: ERF12-5356 [ProxyAPI::ProxyException]: Unable to get PuppetCA certificates ([RestClient::NotAcceptable]: 406 Not Acceptable) for proxy
  • The following error is received in /var/log/foreman/production.log when doing a PXE boot and attempting an unattended provisioning of a system:
Remove puppet certificate for
Operation FAILED: ERF12-7740 [ProxyAPI::ProxyException]: Unable to delete PuppetCA certificate for ([RestClient::NotAcceptable]: 406 Not Acceptable) for proxy
Completed 500 Internal Server Error in 161ms


  • Red Hat Satellite 6.x
  • Red Hat Satellite Capsule 6.x

Subscriber exclusive content

A Red Hat subscription provides unlimited access to our knowledgebase of over 48,000 articles and solutions.

Current Customers and Partners

Log in for full access

Log In