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ESX/ESXi host appears grayed out in vShield Manager (2013686)

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  • ESX/ESXi hosts in the vShield Manager Web interface are grayed out
  • You are unable to write any firewall rules for virtual machines
  • When forcing a sync between the Firewall appliance and vShield Manager, you see the error:

    Unknown error


This issue occurs due to improper ESX/ESXi host licensing. In vShield 4.1, in addition to the typical vShield Application Firewall license, some of the other functionalities that are enabled by the (legacy) vShield Zones feature of the ESX/ESXi license are also required.


To resolve this issue, use the vSphere Advanced Plus or higher license. These licenses contain the vShield Zones feature.

Note: This issue does not occur in vShield 5.0.

Additional Information

An ESX/ESXi host may also be grayed out in vCenter Server if:
  • The connection state in vCenter Server is anything other than connected
  • It is in the maintenance mode
  • It is powered off

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To request a new product feature or to provide feedback on a VMware product, please visit the Request a Product Feature page.


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