Thanks for your reply, after I update my windows version, it seems this problem sloved. On 10/29/2020 16:24，CHANU ROMAIN<romain.chanu@univ-lyon1.fr> wrote： Hello, Are you sure your image is correctly installed? From default iso, windows does not have virt-io driver and cloud-init. You need to install both. Best regards, Romain From: liu <ssdutliu@163.com> Sent: Wednesday, October 28, 2020 10:04 AM To:openstack-discuss@lists.openstack.org Subject: Windows client can't connect to internet Dear OpenStack community, I just launch a windows client in my OpenStack platform, but it can't connect to the internet with the float IP. Before that use a ubuntu client I can access the internet. Any ideas about why this happened. Thank you for your help. Liu