openstack_auth.plugin.base Attempted scope to domain failed, 504 gateway timeout

Solution In Progress - Updated -


  • When logging into Horizon using an AD account the user is getting a 504 error.

  • In the keystone logs, we see "openstack_auth.plugin.base Attempted scope to domain failed".

  • We can login using the local keystone accounts.


  • Red Hat OpenStack Platform 13.0 (RHOSP)

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