Not sure if this helps, but I asked a similar question recently and found I was launching instances in the wrong subnet: https://lists.openstack.org/pipermail/openstack-discuss/2022-November/031230... There were some other helpful potential fixes suggested in that thread as well. If it's still not working, sharing some information about what (local) network access the instances do have, if any, would be helpful. Also, is cloud-init working? Tobias On Mon, Nov 21, 2022, 9:50 AM vincent lee <vincentlee676@gmail.com> wrote:

Hi all, I have an OpenStack deployment using kolla-ansible <https://docs.openstack.org/kolla-ansible/latest/user/quickstart.html> with the Yoga version. Our network setup is provided in the attachment ( *network.jpg*). The configuration file (*globals.yml)* and inventory ( *multinode*) are also attached to this email. After the deployment steps, I try to run the script *init-runonce* to create the images and the networks by modifying the external network parameters according to our network setup. I am successful in launching instances from the horizon dashboard. However, the instances were not able to connect to the Internet. I have tried attaching the floating point IPs to the instance, where the IPs are successfully allocated from the range I have specified in the * init-runonce* script. When I launched the instance and tried to ping the external network, it failed. It will be very helpful if anyone can advise me to resolve this issue. I am currently using Ubuntu 20.04.05 LTS version on the controller and compute nodes.

Best regards, Vincent