From: "andrey dyadyura" <andrey.dyadyura(a)gmail.com&gt; To: users(a)ovirt.org Sent: Monday, December 29, 2014 6:08:40 PM Subject: [ovirt-users] Problems after upgrade ovirt 3.4 to ovirt 3.5 Problems after upgrade ovirt 3.4 to ovirt 3.5 Hello all I use ovirt about 2 years Periodically updating to newer versions. Today I updated engine with version 3.4 to version 3.5 and got a lot of problems. My hosts are on Hetzner and specific settings required to bridge the interface had a mask 255.255.255.255 ( http://wiki.hetzner.de/index.php/KVM_mit_Nutzung_aller_IPs_-_the_easy_way/en ) After update the host was set to NonOperational If I set status maintenance and start ReInstal in Events can see: Host installation in progress . Cannot validate host name settings, reason: resolved host does not match any of the local addresses. Installing Host. Retrieving installation logs to: '/var/log/ovirt-engine/host-deploy/ovirt-20141229170209-virt06.1pro.ru-4001ef86.log'. Installing Host. Stage: Termination. Host installed Host does not comply with the cluster Hetzner networks, the following networks are missing on host: 'ovirtmgmt' Status of host was set to NonOperational. Now.. all my 15 hosts in status: Non Responsive; Engine hase status: Non Operational ((( Help me please..