Comment 6 for bug 2051604

Ok, there's a difference between the 2 backtraces

the first one is an issue with the neutron generic client (it uses octavia creds to communicate with neutron)
the second backtrace is an issue with the neutron user client (it uses the request's credentials to ensure that the user has access to the neutron resources)

I think https://review.opendev.org/c/openstack/octavia/+/905794 fixed your first issue but then you hit a second issue.

can you share more info on your deployment? what are the settings in the [service_auth] and [neutron] (and maybe other services like nova/glance, to compare them) section in the octavia config?