The upgrade troubleshooting topics provide solutions to problems that you might encounter when upgrading vRealize Automation. Installation or Upgrade Fails with a Load Balancer Timeout ErrorA vRealize Automation installation or upgrade for a distributed deployment with a load balancer fails with a 503 service unavailable error. Upgrade Fails for Website Component During IaaS UpgradeThe IaaS upgrade fails and you cannot continue the upgrade. Incorrect Tab Names Appear IntermittentlyIaaS tabs and other tabs might be labeled incorrectly. Changes Made to /etc/hosts Files Might Be Overwritten vRealize Automation Requires vsphere.local as the Default Tenant NamevSphere 6.0 permits assignment of a tenant name other than vsphere.local. However, alternate names cannot be used for the vRealize Automation default tenant name. After Upgrade, Services on the Services Tab of the vRealize Automation Appliance Management Console Do Not Display ProperlyServices are missing or incompletely displayed.