If problems occur after you install and configure vRealize Operations for Horizon, you can collect log files and send the files to VMware for technical support. Create a vRealize Operations Manager Support BundleIf the Horizon adapter does not operate as expected, you can gather log and configuration files in a support bundle and send the support bundle to VMware for analysis. Download vRealize Operations for Horizon Broker Agent Log FilesIf the vRealize Operations for Horizon broker agent does not operate as expected, you can download the broker agent log files and send the log files to VMware for support. Download vRealize Operations for Horizon Desktop Agent Log FilesIf the vRealize Operations for Horizon desktop agent is not operating as expected, you can download the desktop agent log files from the remote desktop and send the log files to VMware for support. View the Collection State and Status of a Horizon Adapter ObjectYou can view collection state and status information for a adapter object in the vRealize Operations Manager user interface. This information can help you diagnose and troubleshoot adapter problems. Horizon Collector and Horizon Adapter Log FilesYou can view collector and Horizon adapter log files in the vRealize Operations Manager user interface. Log files are organized in log type folders. Modify the Logging Level for Horizon Adapter Log FilesYou can modify the logging level for the collector node that contains the log files for a Horizon adapter instance. Remove Adapter InstanceThere is a dependency on vCenter adapter because the vCenter adapter instances are also bundles with the Horizon solution. You cannot just select the Horizon adapter and click the Remove Instance button to remove the Horizon adapter instance. Doing so leads to the deletion of both Horizon and vCenter adapter instances. Cleanup ObjectsA lot of times, objects such as sessions, VMs, users, and pools appear on the dashboards even if they have stopped collecting data from the agents. You can cleanup these objects from the dashboards. Firewall RulesIf you update vRealize Operations Manager, you must apply the firewall rules on vRealize Operations Manager again. LicensingYou get the Skipping data collection as there is not V4H license error message if your license key is not correct. Communication Issues Between Horizon Adapter and AgentsIf you are facing communication issues between the Horizon adapter and the agents, check if the firewall ports are open. If the firewall ports are not open, then open ports 3091–3094 and ports 3099–3101. Post Upgrade ConfigurationsAfter you upgrade vRealize Operations Manager, you must restart collector, rewrite and reopen the vRealize Operations Manager firewall ports, and restart the firewall . Agents-Related IssuesIf Broker agent and Desktop agent are 6.1 or earlier version, disable TLS on the adapter. Missing MetricsLogon duration is not available even after you have logged in to new sessions after setting up the vRealize Operations for Horizon environment. Missing Logon DurationSometimes, the logon duration is not available even if you have logged on to some new sessions after setting up the vRealize Operations for Horizon environment. It is mainly caused by time synchronization issue. Synchronize time on all the components (Connection Server, EventDB, and Desktop) to solve this problem.