If you encounter problems when running or using Update Manager, you can use a troubleshooting topic to understand and solve the problem, if there is a workaround.
What to read next
Update Manager Client Interface Remains Visible in the vSphere Web Client After Uninstalling Update Manager Server After you uninstall Update Manager server, the Update Manager tab might remain visible in the vSphere Web Client .
Connection Loss with Update Manager Server or vCenter Server in a Single vCenter Server System Because of loss of network connectivity or the restart of the servers, the connection between the Update Manager plug-in and the Update Manager server or vCenter Server system might get interrupted.
Gather Update Manager Log Bundles You can gather information about recent events on the Update Manager server for diagnostic purposes.
Gather Update Manager and vCenter Server Log Bundles When the Update Manager server and vCenter Server are installed on the same computer, you can gather information about recent events on the Update Manager server and vCenter Server system for diagnostic purposes.
Log Bundle Is Not Generated Although the script seems to complete successfully, an Update Manager log bundle might not be generated. Because of limitations in the ZIP utility that Update Manager uses, the cumulative log bundle size cannot exceed 2 GB. If the log exceeds 2 GB, the operation might fail.
Host Extension Remediation or Staging Fails Due to Missing Prerequisites Some host extension remediation or staging operations fail because Update Manager does not automatically download and install missing prerequisites.
No Baseline Updates Available Baselines are based on metadata that Update Manager downloads from the VMware and third-party websites.
All Updates in Compliance Reports Are Displayed as Not Applicable Scan results usually consist of a mix of installed, missing, and not applicable results. Not applicable entries are only a concern when this is the universal result or when you know that the patches should be applicable.
All Updates in Compliance Reports Are Unknown Scanning is the process in which you generate compliance information about vSphere objects against attached baselines and baseline groups. The compliance statuses of objects can be All Applicable, Non Compliant, Incompatible, Unknown, and Compliant.
VMware Tools Upgrade Fails if VMware Tools Is Not Installed Update Manager upgrades only an existing installation of VMware Tools in a virtual machine running on a host of version ESXi 5.x or later.
ESXi Host Scanning Fails Scanning is the process in which you generate compliance information about the vSphere objects against attached baselines and baseline groups. In some cases, the scan of ESXi hosts might fail.
ESXi Host Upgrade Fails The remediation process of an ESXi host against an upgrade baseline or a baseline group containing an upgrade baseline might fail.
The Update Manager Repository Cannot Be Deleted When you uninstall the Update Manager server, you might want to delete the Update Manager repository.
Incompatible Compliance State After you perform a scan, the compliance state of the attached baseline might be incompatible. The incompatible compliance state requires more attention and further action to be resolved.