Tag Archive: VMware vSphere Update Manager had an unknown error. Check the events and log files for details

Remediate ESXi Hosts Via vSphere Update Manager Not Working

After upgrading VMware vCenter Server to version 6.7 U2c I ran into a problem with vSphere Update Manager (VUM) when trying to both Check Compliance and Remediate ESXi hosts. After clicking the CHECK COMPLIANCE shown in the above figure I got error: “VMware vSphere Update Manager had an unknown error. Check the events and log …

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