The host troubleshooting topics provide solutions to potential problems that you might encounter when using your vCenter Servers and ESXi hosts. Troubleshooting vSphere HA Host StatesvCenter Server reports vSphere HA host states that indicate an error condition on the host. Such errors can prevent vSphere HA from fully protecting the virtual machines on the host and can impede vSphere HA's ability to restart virtual machines after a failure. Errors can occur when vSphere HA is being configured or unconfigured on a host or, more rarely, during normal operation. When this happens, you should determine how to resolve the error, so that vSphere HA is fully operational. Troubleshooting vSphere Auto DeployThe vSphere Auto Deploy troubleshooting topics offer solutions for situations when provisioning hosts with vSphere Auto Deploy does not work as expected. Authentication Token Manipulation ErrorCreating a password that does not meet the authentication requirements of the host causes an error. Active Directory Rule Set Error Causes Host Profile Compliance FailureApplying a host profile that specifies an Active Directory domain to join causes a compliance failure. Unable to Download VIBs When Using vCenter Server Reverse ProxyYou are unable to download VIBs if vCenter Server is using a custom port for the reverse proxy.