Hi Allessandro, First of all have you tried to restart the networks "with cleanup" (alternatively just destroyed the VRs and let them recreate)?
Can you check the content of the following files on your problem VRs: /etc/dhcphosts.txt /etc/cloudstack/dhcpentry.json Also look through the VR /var/log/cloud.log for any hints why DHCP entries are not passed or parsed. Regards, Dag Sonstebo Cloud Architect ShapeBlue On 20/09/2018, 16:39, "Alessandro Caviglione" <c.alessan...@gmail.com> wrote: Hi guys, I'm experiencing an issue in our CS 4.9. In fact, sonce a week ago, randomly some instances became unreachable. After investigation we see that instances does not have IP address. We tried to restart VR, restart instance, migrate both to another host, but same issue. So we configured the instance with a fixed ip address and it comes back online. We have had this issue on about 15 VR... Any idea?? dag.sonst...@shapeblue.com www.shapeblue.com Amadeus House, Floral Street, London WC2E 9DPUK @shapeblue