The following topics provide a starting point for troubleshooting Platform Services Controller. Search this documentation center and the VMware Knowledge Base system for additional pointers. Determining the Cause of a Lookup Service ErrorvCenter Single Sign-On installation displays an error referring to the vCenter Server or the vSphere Web Client. Unable to Log In Using Active Directory Domain AuthenticationYou log in to a vCenter Server component from the vSphere Web Client. You use your Active Directory user name and password. Authentication fails. vCenter Server Login Fails Because the User Account Is LockedWhen you log in to vCenter Server from the vSphere Web Client login page, an error indicates that the account is locked. VMware Directory Service Replication Can Take a Long TimeIf your environment includes multiple Platform Services Controller instances, and if one of the Platform Services Controller instances becomes unavailable, your environment continues to function. When the Platform Services Controller becomes available again, user data and other information are usually replicated within 60 seconds. In certain special circumstances, however, replication might take a long time. Export a Platform Services Controller Support BundleYou can export a support bundle that contains the log files for the Platform Services Controller services. After the export, you can explore the logs locally or send the bundle to VMware Support. Platform Services Controller Service Logs ReferenceThe Platform Services Controller services use syslog for logging. You can examine the log files to determine the reasons for failures.