RabbitMQ 3.6.2 disallows guest login fro localhost. This was enabled earlier but unfortunately patch didn't survived rebase. Let's re-add this patch.
Fixed in rabbitmq-server-3.6.2-3.el7ost
patch re-added. rabbitmq-server-3.6.2-3.el7ost
Since the problem described in this bug report should be resolved in a recent advisory, it has been closed with a resolution of ERRATA. For information on the advisory, and where to find the updated files, follow the link below. If the solution does not work for you, open a new bug report. https://rhn.redhat.com/errata/RHEA-2016-1597.html