Hello, I’m currently running an OpenStack-Ansible All-In-One deployment (version 30.0.2) on Ubuntu 24.04. The environment hosts several virtual machines across multiple tenant networks. Each VM is assigned a floating IP from a public 172.x.x.x range, which allows access from the controller host and external clients. The issue From time to time, a VM becomes unreachable via its floating IP. The instance is still: Running normally. Reachable from other VMs on the same internal tenant network using its private IP (10.x.x.x). Associated with the same security groups and port configuration as before. This happens without any apparent trigger or configuration change. I can still ping and SSH to other VMs’ floating IPs, so the problem is isolated to one instance at a time. Workaround The only way I’ve found to restore external access is: Disassociate and delete the current floating IP. Allocate a new floating IP from the same pool. Associate it to the same VM port. Once the new floating IP is set, the VM becomes immediately reachable again. This has now occurred several times across different VMs. I’m concerned it will keep happening randomly. Question Has anyone encountered similar behavior with floating IPs in an OpenStack-Ansible AIO setup? Is there a known root cause, or any specific logs or areas I should investigate? If this mailing list is not the right place for this type of question, I’d also appreciate guidance on where to report it or who to contact. Thanks in advance for your help, Christophe.