Sometimes Neutron is failing to send notification to Nova due to timeout, refused connection or another HTTP error. Whenever such event occurs, Neutron notifier for Nova will log an error and consider it's job done. Meanwhile, since there is no retry mechanism, Nova will wait till timeout and put VM in error state.
Re-targetting to 17.1
Bulk moving target milestone to GA after the release of Beta on 14th June '23.
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 (Release of components for Red Hat OpenStack Platform 17.1 (Wallaby)), 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://access.redhat.com/errata/RHEA-2023:4577