



Recently I went through the process of upgrading a VMware Horizon 6.1.1 VDI environment to 7.3.1 which was just released, and apart from some small teething issues with licensing during the upgrade due to a slight oversight in the VMware documentation everything else appeared to go smoothly.Īs this environment uses View Composer Linked-Clones for non-persistent desktop pools part of the upgrade involves installing the new Horizon 7.3.1 agent onto the gold master VM template for each desktop pool then performing a recompose of the VMs in those pools.This is where I ran into an issue.Īfter upgrading the agent and performing a recompose operation on the VMs within each desktop pool they then displayed a Protocol failure” status within Horizon Administrator although I could still login to them as normal through the Horizon Client.
