Hello Brian, Thanks for your answer. The thing is that I need Wallaby because of compatibility with the specific version of Openshift (v4.17) which I would like to deploy on top of Openstack. I also suspected that privsep is not configured properly but based on the line in the log: 2025-05-05 13:22:40.180 226859 INFO oslo.privsep.daemon [-] privsep process running with capabilities (eff/prm/inh): CAP_DAC_OVERRIDE|CAP_DAC_READ_SEARCH|CAP_NET_ADMIN|CAP_SYS_ADMIN/CAP_DAC_OVERRIDE|CAP_DAC_READ_SEARCH|CAP_NET_ADMIN|CAP_SYS_ADMIN/none it is supposed to have SYS_ADMIN privileges which should allow for the modification of the interface. I also tried explicitly passing SYS_ADMIN privileges through [privsep] part of neutron.conf but the result was the same. No other operations are failing similarly. Best regards, Davorin