I have a server running the engine on CentOS Stream. 2 hosts running likewise CentOS 8 Stream (C8S) and 2 hosts running Rocky Linux 8.5 (RL8.5). I had several VMs running on the 8S without any issue. After the oVirt upgrade, which partially fails* on the C8S-machines, the VMs on the C8S-hosts appear to be running, according to the oVirt GUI, but I can neither ping, ssh or even open a virt-viewer console to the VM. The console shows just a black screen. The only thing shown in the GUI is a note that the guest agent should be updated on the VM, so there appears to be some kind of communication between the engine/host and the VM. If I create a new VM on the C8S, I get the same result: No access to it, console is black despite the fact that oVirt GUI shows the VM as running and green. If I create a VM on one of the RL8.5 hosts, the console does work, I can eg. complete the GUI-installation (from CD) there. But after the boot, despite having configured the network correctly in the oVirt-GUI and in the installation process, the VM (using the console) is unable to raise the network. No error is displayed in the oVirt GUI neither for the cluster, DC, host nor VM. No apparent log-error neither in the engine-server nor the hosts. Stopped the firewalld on both in the engine-server as well as the hosts, but this did not change anything. It seems that the 4.4.9-upgrade somehow broke the oVirt logical networking, completely on C8S-hosts. * The C8S hosts fail on update WRT the following packages: Error: Problem 1: package rsyslog-openssl-8.2102.0-5.el8.x86_64 requires rsyslog = 8.2102.0-5.el8, but none of the providers can be installed - cannot install both rsyslog-8.2102.0-6.el8.x86_64 and rsyslog-8.2102.0-5.el8.x86_64 - cannot install the best update candidate for package rsyslog-openssl-8.2102.0-5.el8.x86_64 - cannot install the best update candidate for package rsyslog-8.2102.0-5.el8.x86_64 Problem 2: package ovirt-host-dependencies-4.4.9-2.el8.x86_64 requires rsyslog-openssl, but none of the providers can be installed - package rsyslog-openssl-8.2102.0-5.el8.x86_64 requires rsyslog = 8.2102.0-5.el8, but none of the providers can be installed - cannot install both rsyslog-8.2102.0-6.el8.x86_64 and rsyslog-8.2102.0-5.el8.x86_64 - package rsyslog-elasticsearch-8.2102.0-6.el8.x86_64 requires rsyslog = 8.2102.0-6.el8, but none of the providers can be installed - cannot install the best update candidate for package rsyslog-elasticsearch-8.2102.0-5.el8.x86_64 - cannot install the best update candidate for package ovirt-host-dependencies-4.4.9-2.el8.x86_64 Problem 3: problem with installed package rsyslog-openssl-8.2102.0-5.el8.x86_64 - package rsyslog-openssl-8.2102.0-5.el8.x86_64 requires rsyslog = 8.2102.0-5.el8, but none of the providers can be installed - cannot install both rsyslog-8.2102.0-6.el8.x86_64 and rsyslog-8.2102.0-5.el8.x86_64 - package rsyslog-mmjsonparse-8.2102.0-6.el8.x86_64 requires rsyslog = 8.2102.0-6.el8, but none of the providers can be installed - cannot install the best update candidate for package rsyslog-mmjsonparse-8.2102.0-5.el8.x86_64 Problem 4: package ovirt-host-4.4.9-2.el8.x86_64 requires ovirt-host-dependencies = 4.4.9-2.el8, but none of the providers can be installed - package ovirt-host-dependencies-4.4.9-2.el8.x86_64 requires rsyslog-openssl, but none of the providers can be installed - package rsyslog-openssl-8.2102.0-5.el8.x86_64 requires rsyslog = 8.2102.0-5.el8, but none of the providers can be installed - cannot install both rsyslog-8.2102.0-6.el8.x86_64 and rsyslog-8.2102.0-5.el8.x86_64 - package rsyslog-mmnormalize-8.2102.0-6.el8.x86_64 requires rsyslog = 8.2102.0-6.el8, but none of the providers can be installed - cannot install the best update candidate for package rsyslog-mmnormalize-8.2102.0-5.el8.x86_64 - cannot install the best update candidate for package ovirt-host-4.4.9-2.el8.x86_64 The RL8.5 have no issues with the rsyslog-* packages which are: rsyslog-8.2102.0-5.el8.x86_64 rsyslog-elasticsearch-8.2102.0-5.el8.x86_64 rsyslog-mmjsonparse-8.2102.0-5.el8.x86_64 rsyslog-mmnormalize-8.2102.0-5.el8.x86_64 rsyslog-openssl-8.2102.0-5.el8.x86_64 What can I still check at this point? Poltsi